:root{--primary: #4a7c59;--primary-dark: #3b6647;--primary-light: #e9f1eb;--bg: #f5f5f0;--surface: #ffffff;--text: #2e2e2a;--text-muted: #76766c;--border: #e4e4da;--radius: 10px;--shadow-sm: 0 1px 3px rgba(46, 46, 42, .06);--shadow-md: 0 6px 18px rgba(46, 46, 42, .1);--header-h: 60px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans SC,sans-serif;font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button{font-family:inherit;cursor:pointer}.container{max-width:1120px;margin:0 auto;padding:0 20px}.app{min-height:100vh;display:flex;flex-direction:column}.main{flex:1}.bg-platform-douyin{background:#161823}.bg-platform-xiaohongshu{background:#ff2442}.bg-platform-zhihu{background:#06f}.bg-platform-bilibili{background:#00a1d6}.bg-platform-youtube{background:red}.bg-platform-linkedin{background:#0a66c2}.bg-platform-x{background:#000}.bg-platform-instagram{background:linear-gradient(45deg,#f09433,#dc2743,#bc1888)}.bg-platform-tiktok{background:#010101}.platform-chip{display:inline-block;padding:2px 9px;border-radius:4px;color:#fff;font-size:11px;font-weight:600;letter-spacing:.3px;line-height:1.6}.site-header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.site-header .container{display:flex;align-items:center;height:var(--header-h);gap:24px}.logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:16px;color:var(--text);white-space:nowrap}.logo-mark{width:26px;height:26px;border-radius:50%;background:var(--primary);display:inline-flex;align-items:center;justify-content:center;flex:none}.nav-menu{display:flex;align-items:center;gap:26px;margin:0 auto}.nav-menu a{font-size:14px;color:var(--text-muted);padding:4px 0;border-bottom:2px solid transparent;transition:color .2s,border-color .2s}.nav-menu a:hover{color:var(--primary)}.nav-menu a.active{color:var(--primary);font-weight:600;border-bottom-color:var(--primary)}.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}.nav-menu+.header-right{margin-left:0}.lang-btn{border:1px solid var(--primary);background:transparent;color:var(--primary);font-size:13px;font-weight:600;padding:5px 14px;border-radius:6px;transition:background .2s,color .2s;white-space:nowrap}.lang-btn:hover{background:var(--primary);color:#fff}.hamburger{display:none;background:none;border:none;padding:6px;color:var(--text)}.mobile-menu{display:none;border-top:1px solid var(--border);background:var(--surface);padding:8px 20px 14px}.mobile-menu a{display:block;padding:11px 0;font-size:14px;color:var(--text);border-bottom:1px solid var(--border)}.mobile-menu a:last-child{border-bottom:none}.mobile-menu a.active{color:var(--primary);font-weight:600}.hero{text-align:center;padding:76px 0 60px}.hero h1{margin:0 0 14px;font-size:40px;font-weight:700;letter-spacing:1px;color:var(--text)}.hero p{margin:0 auto 34px;max-width:560px;color:var(--text-muted);font-size:16px}.hero-links{display:flex;justify-content:center;flex-wrap:wrap;gap:14px}.hero-link{display:inline-flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:11px 22px;font-size:14px;font-weight:600;color:var(--text);box-shadow:var(--shadow-sm);transition:border-color .2s,color .2s,transform .2s}.hero-link svg{color:var(--primary);flex:none}.hero-link:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}.section{margin:8px 0 56px}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:18px}.section-head h2{margin:0;font-size:21px;font-weight:700;display:flex;align-items:center;gap:10px}.section-head h2:before{content:"";width:10px;height:10px;background:var(--primary);border-radius:2px;flex:none}.section-more{font-size:13px;color:var(--primary);font-weight:600;white-space:nowrap}.section-more:hover{text-decoration:underline}.title-rows{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.title-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:15px 20px;border-bottom:1px solid var(--border);transition:background .15s}.title-row:last-child{border-bottom:none}.title-row:hover{background:var(--primary-light)}.title-row .t{display:flex;align-items:center;gap:10px;font-size:14.5px;font-weight:500;min-width:0}.title-row .t:before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary);flex:none}.title-row .t span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.title-row:hover .t{color:var(--primary)}.title-row .d{font-size:12.5px;color:var(--text-muted);flex:none}.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(248px,1fr))}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:box-shadow .2s,transform .2s;display:flex;flex-direction:column}.card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}.card-thumb{position:relative;aspect-ratio:16 / 10;background:#dcdcd4;overflow:hidden}.card-thumb img{width:100%;height:100%;object-fit:cover}.card-thumb .platform-chip{position:absolute;top:10px;left:10px}.card-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:7px;flex:1}.card-title{margin:0;font-size:14.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card-desc{margin:0;font-size:12.5px;color:var(--text-muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card-meta{margin-top:auto;font-size:12px;color:var(--text-muted)}.play-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#0000001f;transition:background .2s}.card:hover .play-overlay{background:#00000047}.play-btn{width:46px;height:46px;border-radius:50%;background:#ffffffeb;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #00000040}.play-btn:before{content:"";margin-left:3px;border-left:14px solid var(--primary);border-top:9px solid transparent;border-bottom:9px solid transparent}.page-head{padding:44px 0 26px}.page-head h1{margin:0 0 8px;font-size:28px;font-weight:700}.page-head p{margin:0;color:var(--text-muted);font-size:14px}.article-list{display:flex;flex-direction:column;gap:16px;padding-bottom:56px}.article-card{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--primary);border-radius:8px;padding:20px 24px;box-shadow:var(--shadow-sm);transition:box-shadow .2s}.article-card:hover{box-shadow:var(--shadow-md)}.article-card h3{margin:0 0 8px;font-size:17px;font-weight:600;line-height:1.5}.article-card h3 a:hover{color:var(--primary)}.article-card .summary{margin:0 0 12px;font-size:13.5px;color:var(--text-muted);line-height:1.7}.article-card .meta{display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--text-muted)}.source-chip{background:var(--primary-light);color:var(--primary-dark);padding:2px 10px;border-radius:4px;font-size:12px;font-weight:600}.detail-wrap{max-width:780px;margin:0 auto;padding:36px 20px 64px}.back-link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--primary);font-weight:600;margin-bottom:26px;background:none;border:none;padding:0}.back-link:hover{text-decoration:underline}.detail-title{margin:0 0 14px;font-size:29px;font-weight:700;line-height:1.4}.detail-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--text-muted);padding-bottom:20px;border-bottom:1px solid var(--border);margin-bottom:28px}.btn-outline{display:inline-flex;align-items:center;gap:5px;border:1px solid var(--primary);color:var(--primary);background:transparent;border-radius:6px;padding:4px 12px;font-size:12.5px;font-weight:600;transition:background .2s,color .2s}.btn-outline:hover{background:var(--primary);color:#fff}.btn-solid{display:inline-flex;align-items:center;gap:5px;border:1px solid var(--primary);background:var(--primary);color:#fff;border-radius:6px;padding:5px 14px;font-size:13px;font-weight:600;transition:background .2s}.btn-solid:hover{background:var(--primary-dark)}.md-body{font-size:15px;line-height:1.9;color:#3a3a35}.md-body h2{font-size:19px;font-weight:700;margin:34px 0 12px;padding-left:12px;border-left:4px solid var(--primary);color:var(--text)}.md-body h3{font-size:16px;font-weight:700;margin:24px 0 8px;color:var(--text)}.md-body p{margin:0 0 14px}.md-body ul,.md-body ol{margin:0 0 14px;padding-left:24px}.md-body li{margin-bottom:6px}.md-body a{color:var(--primary);text-decoration:underline}.md-body strong{color:var(--text)}.md-body blockquote{margin:0 0 14px;padding:10px 16px;border-left:4px solid var(--border);background:var(--surface);color:var(--text-muted)}.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}.filter-chip{border:1px solid var(--border);background:var(--surface);color:var(--text-muted);border-radius:999px;padding:6px 16px;font-size:13px;font-weight:600;transition:all .2s}.filter-chip:hover{border-color:var(--primary);color:var(--primary)}.filter-chip.active{background:var(--primary);border-color:var(--primary);color:#fff}.insight-list{display:flex;flex-direction:column;gap:16px;padding-bottom:56px}.insight-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow-sm);display:flex;gap:22px;align-items:flex-start;justify-content:space-between;transition:box-shadow .2s}.insight-card:hover{box-shadow:var(--shadow-md)}.insight-main{min-width:0}.insight-main .top{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap}.insight-main h3{margin:0 0 6px;font-size:16.5px;font-weight:600;line-height:1.5}.insight-main .desc{margin:0 0 10px;font-size:13.5px;color:var(--text-muted);line-height:1.7}.insight-main .meta{font-size:12.5px;color:var(--text-muted);display:flex;gap:12px;flex-wrap:wrap}.insight-actions{display:flex;gap:10px;flex:none;padding-top:4px}.empty-state{border:1px dashed var(--border);border-radius:var(--radius);padding:72px 20px;text-align:center;color:var(--text-muted);font-size:14px;background:var(--surface)}.video-modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;z-index:200;display:flex;align-items:center;justify-content:center;padding:20px}.video-modal{background:#fff;border-radius:12px;width:min(860px,100%);overflow:hidden}.video-modal video{width:100%;aspect-ratio:16 / 9;background:#000;display:block}.video-modal .info{padding:16px 20px 20px}.video-modal .info h3{margin:0 0 6px;font-size:16px}.video-modal .info p{margin:0;font-size:13px;color:var(--text-muted)}.video-modal .close{display:block;margin:0 20px 18px auto;border:1px solid var(--border);background:#fff;border-radius:6px;padding:6px 16px;font-size:13px;color:var(--text-muted)}.video-modal .close:hover{color:var(--primary);border-color:var(--primary)}.site-footer{background:var(--surface);border-top:1px solid var(--border);margin-top:40px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding:44px 0 34px}.footer-brand .logo{margin-bottom:12px}.footer-brand p{margin:0;font-size:13px;color:var(--text-muted);line-height:1.8;max-width:340px}.footer-col h4{margin:0 0 14px;font-size:14px;font-weight:700}.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}.footer-col a,.footer-col li{font-size:13px;color:var(--text-muted)}.footer-col a:hover{color:var(--primary);text-decoration:underline}.footer-bottom{border-top:1px solid var(--border);padding:16px 0;text-align:center;font-size:12px;color:var(--text-muted)}@media (max-width: 768px){.nav-menu{display:none}.hamburger,.mobile-menu.open{display:block}.hero{padding:52px 0 42px}.hero h1{font-size:29px}.hero p{font-size:14px}.section{margin-bottom:42px}.page-head h1,.detail-title{font-size:23px}.insight-card{flex-direction:column;gap:14px}.insight-actions{padding-top:0}.footer-grid{grid-template-columns:1fr;gap:28px;padding:34px 0 26px}}
