/* 探花 - 主样式文件 */
/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;color:#222;background:#fff;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
a:hover{color:#FF4E50}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
input,button,textarea,select{font-family:inherit;outline:none}
button{cursor:pointer;border:none;background:none}

/* ===== CSS变量 ===== */
:root{
  --red:#FF4E50;
  --orange:#FC913A;
  --dark:#1a1a2e;
  --dark2:#16213e;
  --dark3:#0f3460;
  --gray:#f5f5f7;
  --gray2:#e8e8ec;
  --gray3:#999;
  --text:#222;
  --text2:#555;
  --white:#fff;
  --radius:12px;
  --shadow:0 4px 20px rgba(0,0,0,0.08);
  --shadow2:0 8px 40px rgba(0,0,0,0.14);
  --transition:0.3s ease;
  --gradient:linear-gradient(135deg,#FF4E50,#FC913A);
}

/* ===== 顶部通知栏 ===== */
.top-bar{background:var(--gradient);color:#fff;text-align:center;padding:8px 20px;font-size:13px;letter-spacing:0.5px}
.top-bar a{color:#fff;text-decoration:underline;margin:0 6px}

/* ===== 导航栏 ===== */
.site-header{background:var(--dark);position:sticky;top:0;z-index:1000;box-shadow:0 2px 20px rgba(0,0,0,0.3)}
.header-inner{max-width:1280px;margin:0 auto;padding:0 20px;display:flex;align-items:center;height:64px;gap:24px}
.logo-wrap{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-img{width:36px;height:36px;border-radius:8px}
.logo-text{font-size:20px;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;flex:1}
.main-nav a{color:rgba(255,255,255,0.85);padding:8px 14px;border-radius:8px;font-size:14px;font-weight:500;transition:var(--transition);white-space:nowrap}
.main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(255,78,80,0.2)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.btn-login{color:rgba(255,255,255,0.8);font-size:14px;padding:6px 16px;border:1px solid rgba(255,255,255,0.3);border-radius:20px;transition:var(--transition)}
.btn-login:hover{background:rgba(255,255,255,0.1);color:#fff}
.btn-join{background:var(--gradient);color:#fff;font-size:14px;padding:7px 18px;border-radius:20px;font-weight:600;transition:var(--transition)}
.btn-join:hover{opacity:0.9;transform:translateY(-1px)}

/* ===== 搜索框 ===== */
.search-bar{background:var(--dark2);border-bottom:1px solid rgba(255,255,255,0.06)}
.search-inner{max-width:1280px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:12px}
.search-form{display:flex;align-items:center;flex:1;max-width:600px;background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.12);border-radius:24px;overflow:hidden;transition:var(--transition)}
.search-form:focus-within{border-color:var(--red);background:rgba(255,255,255,0.12)}
.search-input{flex:1;background:none;border:none;padding:10px 18px;color:#fff;font-size:14px}
.search-input::placeholder{color:rgba(255,255,255,0.4)}
.search-btn{background:var(--gradient);border:none;padding:10px 20px;color:#fff;font-size:14px;cursor:pointer;transition:var(--transition)}
.search-btn:hover{opacity:0.9}
.search-tags{display:flex;gap:8px;flex-wrap:wrap}
.search-tag{color:rgba(255,255,255,0.5);font-size:12px;padding:4px 10px;border:1px solid rgba(255,255,255,0.15);border-radius:12px;cursor:pointer;transition:var(--transition)}
.search-tag:hover{color:#fff;border-color:var(--red)}

/* ===== 面包屑 ===== */
.breadcrumb{background:var(--gray);padding:10px 0;border-bottom:1px solid var(--gray2)}
.breadcrumb-inner{max-width:1280px;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--gray3)}
.breadcrumb-inner a{color:var(--gray3);transition:var(--transition)}
.breadcrumb-inner a:hover{color:var(--red)}
.breadcrumb-sep{color:var(--gray3)}

/* ===== 英雄区 ===== */
.hero{position:relative;overflow:hidden;background:var(--dark)}
.hero-slider{position:relative;height:520px}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 0.8s ease}
.hero-slide.active{opacity:1}
.hero-slide img{width:100%;height:100%;object-fit:cover;opacity:0.6}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(to right,rgba(26,26,46,0.9) 40%,transparent)}
.hero-content{position:absolute;top:50%;left:0;transform:translateY(-50%);padding:0 60px;max-width:620px}
.hero-badge{display:inline-flex;align-items:center;gap:6px;background:var(--gradient);color:#fff;padding:5px 14px;border-radius:20px;font-size:12px;font-weight:600;margin-bottom:16px}
.hero-badge::before{content:'▶';font-size:10px}
.hero-title{font-size:42px;font-weight:900;color:#fff;line-height:1.2;margin-bottom:16px}
.hero-title span{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{color:rgba(255,255,255,0.75);font-size:16px;margin-bottom:28px;line-height:1.8}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn-primary{background:var(--gradient);color:#fff;padding:13px 28px;border-radius:28px;font-size:15px;font-weight:700;transition:var(--transition);display:inline-flex;align-items:center;gap:8px}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(255,78,80,0.4);color:#fff}
.btn-secondary{background:rgba(255,255,255,0.1);color:#fff;padding:13px 28px;border-radius:28px;font-size:15px;font-weight:600;border:1px solid rgba(255,255,255,0.3);transition:var(--transition)}
.btn-secondary:hover{background:rgba(255,255,255,0.2);transform:translateY(-2px);color:#fff}
.hero-dots{position:absolute;bottom:24px;left:60px;display:flex;gap:8px}
.hero-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,0.4);cursor:pointer;transition:var(--transition)}
.hero-dot.active{background:#fff;width:24px;border-radius:4px}
.hero-stats{position:absolute;bottom:0;right:0;display:flex;background:rgba(26,26,46,0.9);backdrop-filter:blur(10px)}
.hero-stat{padding:16px 28px;text-align:center;border-left:1px solid rgba(255,255,255,0.1)}
.hero-stat-num{font-size:24px;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-stat-label{font-size:12px;color:rgba(255,255,255,0.6);margin-top:2px}

/* ===== 通用区块 ===== */
.section{padding:60px 0}
.section-alt{background:var(--gray)}
.section-dark{background:var(--dark);color:#fff}
.container{max-width:1280px;margin:0 auto;padding:0 20px}
.section-header{text-align:center;margin-bottom:44px}
.section-tag{display:inline-block;background:rgba(255,78,80,0.1);color:var(--red);padding:4px 14px;border-radius:12px;font-size:12px;font-weight:600;margin-bottom:10px;letter-spacing:1px}
.section-title{font-size:32px;font-weight:800;color:var(--dark);margin-bottom:12px}
.section-dark .section-title{color:#fff}
.section-subtitle{color:var(--text2);font-size:15px;max-width:560px;margin:0 auto}
.section-dark .section-subtitle{color:rgba(255,255,255,0.6)}
.section-more{text-align:center;margin-top:36px}
.btn-more{display:inline-flex;align-items:center;gap:8px;border:2px solid var(--red);color:var(--red);padding:11px 28px;border-radius:24px;font-size:14px;font-weight:600;transition:var(--transition)}
.btn-more:hover{background:var(--red);color:#fff}

/* ===== 视频卡片 ===== */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:var(--shadow2)}
.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#111}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease}
.video-card:hover .video-thumb img{transform:scale(1.06)}
.video-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:var(--transition);background:rgba(0,0,0,0.35)}
.video-card:hover .video-play{opacity:1}
.play-btn{width:54px;height:54px;background:rgba(255,255,255,0.95);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:var(--transition)}
.play-btn::after{content:'';border-left:18px solid var(--red);border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:4px}
.video-card:hover .play-btn{transform:scale(1.1)}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,0.75);color:#fff;font-size:11px;padding:2px 7px;border-radius:4px}
.video-badge{position:absolute;top:8px;left:8px;background:var(--gradient);color:#fff;font-size:11px;padding:3px 8px;border-radius:4px;font-weight:600}
.video-info{padding:14px}
.video-title{font-size:14px;font-weight:600;color:var(--dark);margin-bottom:8px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--gray3)}
.video-author{display:flex;align-items:center;gap:6px}
.video-author-avatar{width:22px;height:22px;border-radius:50%;object-fit:cover}
.video-stats{display:flex;gap:10px}
.video-stat{display:flex;align-items:center;gap:3px}

/* ===== 新闻卡片 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow2)}
.news-card-img{aspect-ratio:16/9;overflow:hidden}
.news-card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s}
.news-card:hover .news-card-img img{transform:scale(1.05)}
.news-card-body{padding:18px}
.news-cat{display:inline-block;background:rgba(255,78,80,0.1);color:var(--red);font-size:11px;padding:3px 10px;border-radius:10px;margin-bottom:10px;font-weight:600}
.news-card-title{font-size:15px;font-weight:700;color:var(--dark);margin-bottom:10px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card-title:hover{color:var(--red)}
.news-card-desc{font-size:13px;color:var(--text2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
.news-card-foot{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--gray3)}
.news-card-foot a{color:var(--red);font-weight:600}

/* ===== 专家卡片 ===== */
.experts-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);text-align:center}
.expert-card:hover{transform:translateY(-6px);box-shadow:var(--shadow2)}
.expert-avatar{width:100%;aspect-ratio:1;overflow:hidden}
.expert-avatar img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s}
.expert-card:hover .expert-avatar img{transform:scale(1.05)}
.expert-info{padding:18px}
.expert-name{font-size:17px;font-weight:700;color:var(--dark);margin-bottom:4px}
.expert-role{font-size:13px;color:var(--red);margin-bottom:8px;font-weight:600}
.expert-desc{font-size:13px;color:var(--text2);line-height:1.7;margin-bottom:14px}
.expert-tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-bottom:14px}
.expert-tag{background:var(--gray);color:var(--text2);font-size:11px;padding:3px 9px;border-radius:10px}
.expert-btns{display:flex;gap:8px;justify-content:center}
.btn-sm{padding:7px 16px;border-radius:16px;font-size:12px;font-weight:600;transition:var(--transition)}
.btn-sm-primary{background:var(--gradient);color:#fff}
.btn-sm-primary:hover{opacity:0.9;color:#fff}
.btn-sm-outline{border:1px solid var(--red);color:var(--red)}
.btn-sm-outline:hover{background:var(--red);color:#fff}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid var(--gray2);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;transition:var(--transition)}
.faq-item.open{border-color:var(--red)}
.faq-q{padding:18px 20px;font-size:15px;font-weight:600;color:var(--dark);cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:var(--transition)}
.faq-q:hover{color:var(--red)}
.faq-item.open .faq-q{color:var(--red);background:rgba(255,78,80,0.04)}
.faq-icon{width:22px;height:22px;border-radius:50%;background:var(--gray2);display:flex;align-items:center;justify-content:center;font-size:14px;transition:var(--transition);flex-shrink:0}
.faq-item.open .faq-icon{background:var(--red);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 0.4s ease,padding 0.3s}
.faq-item.open .faq-a{max-height:300px;padding:0 20px 18px}
.faq-a p{font-size:14px;color:var(--text2);line-height:1.8}

/* ===== 评论区 ===== */
.reviews-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.review-card{background:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);transition:var(--transition)}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow2)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.review-avatar{width:44px;height:44px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:700;flex-shrink:0}
.review-name{font-size:14px;font-weight:700;color:var(--dark)}
.review-stars{color:#FFB800;font-size:13px;margin-top:2px}
.review-text{font-size:13px;color:var(--text2);line-height:1.8}
.review-date{font-size:11px;color:var(--gray3);margin-top:10px}

/* ===== 合作品牌 ===== */
.partners-row{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center}
.partner-item{background:#fff;border:1px solid var(--gray2);border-radius:10px;padding:16px 28px;font-size:14px;font-weight:600;color:var(--text2);transition:var(--transition)}
.partner-item:hover{border-color:var(--red);color:var(--red);transform:translateY(-2px);box-shadow:var(--shadow)}

/* ===== 联系区 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info h3{font-size:22px;font-weight:700;color:var(--dark);margin-bottom:20px}
.contact-item{display:flex;align-items:flex-start;gap:14px;margin-bottom:18px}
.contact-icon{width:42px;height:42px;background:rgba(255,78,80,0.1);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.contact-label{font-size:12px;color:var(--gray3);margin-bottom:4px}
.contact-value{font-size:14px;font-weight:600;color:var(--dark)}
.qr-group{display:flex;gap:24px;margin-top:24px}
.qr-item{text-align:center}
.qr-item img{width:120px;height:120px;border-radius:8px;border:1px solid var(--gray2)}
.qr-label{font-size:12px;color:var(--gray3);margin-top:8px}
.contact-form{background:var(--gray);border-radius:var(--radius);padding:28px}
.contact-form h3{font-size:18px;font-weight:700;color:var(--dark);margin-bottom:20px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--text2);margin-bottom:6px}
.form-control{width:100%;padding:11px 14px;border:1px solid var(--gray2);border-radius:8px;font-size:14px;color:var(--dark);transition:var(--transition);background:#fff}
.form-control:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(255,78,80,0.1)}
textarea.form-control{resize:vertical;min-height:100px}
.btn-submit{width:100%;background:var(--gradient);color:#fff;padding:13px;border-radius:8px;font-size:15px;font-weight:700;transition:var(--transition)}
.btn-submit:hover{opacity:0.9;transform:translateY(-1px)}

/* ===== 社交分享 ===== */
.share-bar{background:var(--dark2);padding:20px 0}
.share-inner{max-width:1280px;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.share-label{color:rgba(255,255,255,0.6);font-size:14px}
.share-btns{display:flex;gap:10px;flex-wrap:wrap}
.share-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;border-radius:20px;font-size:13px;font-weight:600;transition:var(--transition);color:#fff}
.share-btn:hover{transform:translateY(-2px);opacity:0.9;color:#fff}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#010101}
.share-bilibili{background:#00A1D6}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark);color:rgba(255,255,255,0.7);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .logo-text{font-size:22px;margin-bottom:14px;display:block}
.footer-brand p{font-size:13px;line-height:1.9;color:rgba(255,255,255,0.55);margin-bottom:16px}
.footer-social{display:flex;gap:10px}
.social-btn{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,0.1);display:flex;align-items:center;justify-content:center;font-size:14px;transition:var(--transition);color:#fff}
.social-btn:hover{background:var(--red);color:#fff}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13px;color:rgba(255,255,255,0.55);transition:var(--transition)}
.footer-links a:hover{color:var(--red)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding:20px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:gap;font-size:13px;color:rgba(255,255,255,0.4)}
.footer-bottom a{color:rgba(255,255,255,0.4);transition:var(--transition)}
.footer-bottom a:hover{color:var(--red)}
.footer-icp{display:flex;gap:16px;flex-wrap:wrap}

/* ===== 统计数字 ===== */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{background:#fff;border-radius:var(--radius);padding:28px;text-align:center;box-shadow:var(--shadow);border-top:3px solid var(--red)}
.stat-num{font-size:36px;font-weight:900;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{font-size:14px;color:var(--text2);margin-top:6px}

/* ===== 功能区 ===== */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:var(--transition)}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow2);border-left:3px solid var(--red)}
.feature-icon{width:52px;height:52px;background:rgba(255,78,80,0.1);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.feature-title{font-size:17px;font-weight:700;color:var(--dark);margin-bottom:10px}
.feature-desc{font-size:13px;color:var(--text2);line-height:1.8}

/* ===== 内页头部 ===== */
.page-hero{background:linear-gradient(135deg,var(--dark) 0%,var(--dark3) 100%);padding:50px 0;color:#fff;position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")}
.page-hero-content{position:relative;z-index:1}
.page-hero h1{font-size:36px;font-weight:900;margin-bottom:12px}
.page-hero p{font-size:15px;color:rgba(255,255,255,0.7);max-width:600px;line-height:1.8}

/* ===== 内页内容 ===== */
.page-content{padding:50px 0}
.content-layout{display:grid;grid-template-columns:1fr 300px;gap:40px;align-items:start}
.content-main{}
.content-sidebar{}
.sidebar-widget{background:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);margin-bottom:24px}
.sidebar-widget h3{font-size:16px;font-weight:700;color:var(--dark);margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--red)}
.sidebar-links{display:flex;flex-direction:column;gap:10px}
.sidebar-links a{font-size:13px;color:var(--text2);padding:8px 12px;border-radius:8px;transition:var(--transition);display:flex;align-items:center;gap:8px}
.sidebar-links a:hover{background:rgba(255,78,80,0.08);color:var(--red)}
.sidebar-links a::before{content:'▶';font-size:10px;color:var(--red)}

/* ===== 评论区 ===== */
.comments-section{margin-top:40px}
.comments-section h3{font-size:20px;font-weight:700;color:var(--dark);margin-bottom:24px}
.comment-item{display:flex;gap:14px;margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--gray2)}
.comment-avatar{width:44px;height:44px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:700;flex-shrink:0}
.comment-body{}
.comment-meta{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.comment-name{font-size:14px;font-weight:700;color:var(--dark)}
.comment-time{font-size:12px;color:var(--gray3)}
.comment-stars{color:#FFB800;font-size:12px}
.comment-text{font-size:14px;color:var(--text2);line-height:1.8}
.comment-reply{margin-top:8px;padding:12px 16px;background:var(--gray);border-radius:8px;border-left:3px solid var(--red)}
.comment-reply p{font-size:13px;color:var(--text2);line-height:1.7}
.comment-reply strong{color:var(--red);font-size:12px}

/* ===== 标签 ===== */
.tags-wrap{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}
.tag{background:var(--gray);color:var(--text2);font-size:12px;padding:5px 12px;border-radius:12px;transition:var(--transition)}
.tag:hover{background:var(--red);color:#fff}

/* ===== 移动端菜单 ===== */
.mobile-menu-btn{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer}
.mobile-menu-btn span{display:block;width:22px;height:2px;background:#fff;border-radius:2px;transition:var(--transition)}
.mobile-nav{display:none;position:fixed;inset:0;background:var(--dark);z-index:2000;padding:80px 24px 24px;overflow-y:auto}
.mobile-nav.open{display:block}
.mobile-nav-close{position:absolute;top:20px;right:20px;color:#fff;font-size:24px;cursor:pointer}
.mobile-nav a{display:block;color:rgba(255,255,255,0.85);padding:14px 0;font-size:16px;border-bottom:1px solid rgba(255,255,255,0.08)}
.mobile-nav a:hover{color:var(--red)}

/* ===== 懒加载 ===== */
img[loading="lazy"]{opacity:0;transition:opacity 0.4s}
img.loaded{opacity:1}

/* ===== 响应式 ===== */
@media(max-width:1100px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .experts-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  .hero-slider{height:380px}
  .hero-content{padding:0 30px}
  .hero-title{font-size:30px}
  .hero-stats{display:none}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .reviews-grid{grid-template-columns:repeat(2,1fr)}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .content-layout{grid-template-columns:1fr}
  .stats-row{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .main-nav{display:none}
  .mobile-menu-btn{display:flex}
  .header-actions .btn-login{display:none}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .experts-grid{grid-template-columns:repeat(2,1fr)}
  .section-title{font-size:24px}
  .hero-title{font-size:24px}
  .hero-desc{font-size:14px}
  .page-hero h1{font-size:26px}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .reviews-grid{grid-template-columns:1fr}
  .experts-grid{grid-template-columns:1fr}
  .stats-row{grid-template-columns:1fr 1fr}
  .hero-btns{flex-direction:column}
  .btn-primary,.btn-secondary{text-align:center;justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:10px;text-align:center}
}

/* ===== 动画 ===== */
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.animate-in{animation:fadeInUp 0.6s ease forwards}
.delay-1{animation-delay:0.1s}
.delay-2{animation-delay:0.2s}
.delay-3{animation-delay:0.3s}

/* ===== 直播标识 ===== */
.live-badge{display:inline-flex;align-items:center;gap:5px;background:#E6162D;color:#fff;font-size:11px;padding:3px 8px;border-radius:4px;font-weight:700}
.live-dot{width:7px;height:7px;background:#fff;border-radius:50%;animation:blink 1s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0.3}}

/* ===== 视频解说/录屏页特殊样式 ===== */
.video-list-item{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--gray2)}
.video-list-thumb{width:200px;flex-shrink:0;aspect-ratio:16/9;border-radius:8px;overflow:hidden;position:relative}
.video-list-thumb img{width:100%;height:100%;object-fit:cover}
.video-list-info{flex:1}
.video-list-title{font-size:16px;font-weight:700;color:var(--dark);margin-bottom:8px;line-height:1.5}
.video-list-title:hover{color:var(--red)}
.video-list-desc{font-size:13px;color:var(--text2);line-height:1.7;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-list-meta{display:flex;gap:14px;font-size:12px;color:var(--gray3)}

/* ===== 问答页 ===== */
.qa-item{background:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);margin-bottom:16px}
.qa-q{font-size:16px;font-weight:700;color:var(--dark);margin-bottom:12px;display:flex;gap:10px}
.qa-q::before{content:'Q';background:var(--gradient);color:#fff;width:24px;height:24px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;flex-shrink:0}
.qa-a{font-size:14px;color:var(--text2);line-height:1.8;display:flex;gap:10px}
.qa-a::before{content:'A';background:#07C160;color:#fff;width:24px;height:24px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;flex-shrink:0}

/* ===== 工具页 ===== */
.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tool-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:var(--transition);text-align:center;border-top:3px solid transparent}
.tool-card:hover{transform:translateY(-4px);box-shadow:var(--shadow2);border-top-color:var(--red)}
.tool-icon{font-size:36px;margin-bottom:14px}
.tool-name{font-size:16px;font-weight:700;color:var(--dark);margin-bottom:8px}
.tool-desc{font-size:13px;color:var(--text2);line-height:1.7}

/* ===== 分页 ===== */
.pagination{display:flex;justify-content:center;gap:8px;margin-top:40px;flex-wrap:wrap}
.page-btn{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;border:1px solid var(--gray2);color:var(--text2);transition:var(--transition)}
.page-btn:hover,.page-btn.active{background:var(--red);color:#fff;border-color:var(--red)}

/* ===== 新闻详情 ===== */
.news-article{background:#fff;border-radius:var(--radius);padding:36px;box-shadow:var(--shadow)}
.news-article-head{margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--gray2)}
.news-article-title{font-size:26px;font-weight:800;color:var(--dark);margin:12px 0;line-height:1.4}
.news-article-meta{display:flex;gap:20px;font-size:13px;color:var(--gray3);flex-wrap:wrap}
.news-article-body{font-size:15px;line-height:1.9;color:var(--text)}
.news-article-body h2{font-size:20px;font-weight:700;color:var(--dark);margin:28px 0 12px}
.news-article-body p{margin-bottom:16px}
.news-article-tags{margin-top:24px;padding-top:20px;border-top:1px solid var(--gray2);display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:13px;color:var(--gray3)}
.news-nav{display:flex;gap:16px;margin:24px 0}
.news-nav-item{flex:1;padding:14px 18px;background:var(--gray);border-radius:8px;font-size:13px;color:var(--text2);display:flex;flex-direction:column;gap:4px;transition:var(--transition)}
.news-nav-item:hover{background:rgba(255,78,80,0.06);color:var(--red)}
.news-nav-item span:first-child{font-weight:700;color:var(--red);font-size:12px}
/* 新闻列表 */
.news-list{display:flex;flex-direction:column}
.news-list-item{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--gray2)}
.news-list-img{width:160px;flex-shrink:0;aspect-ratio:16/9;border-radius:8px;overflow:hidden}
.news-list-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s}
.news-list-item:hover .news-list-img img{transform:scale(1.05)}
.news-list-info{flex:1}
.news-list-title{font-size:16px;font-weight:700;color:var(--dark);margin:6px 0;line-height:1.4}
.news-list-title a:hover{color:var(--red)}
.news-list-desc{font-size:13px;color:var(--text2);line-height:1.7;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-list-foot{display:flex;justify-content:space-between;font-size:12px;color:var(--gray3)}
.news-list-foot a{color:var(--red);font-weight:600}