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0;--card-padding:1.5rem;--card-padding-sm:1rem;--border-radius:8px;--border-radius-lg:12px;--border-radius-xl:16px;--font-chinese:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei","Helvetica Neue",Arial,sans-serif;--font-chinese-title:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans CN",sans-serif;--font-number:"SF Pro Display","Helvetica Neue",Arial,"PingFang SC",sans-serif;--bg-primary:#fff;--bg-secondary:#f8fafc;--bg-tertiary:#f1f5f9;--text-primary:#1e293b;--text-secondary:#64748b;--text-tertiary:#94a3b8;--border-light:#e2e8f0;--border-medium:#cbd5e1;--border-dark:#94a3b8}body{font-family:var(--font-chinese);font-size:16px;line-height:1.7}body,h1,h2,h3,h4,h5,h6{color:var(--text-primary)}h1,h2,h3,h4,h5,h6{font-family:var(--font-chinese-title);font-weight:600;line-height:1.4;margin-bottom:.5em}h1{font-size:2.25rem}h2{font-size:1.875rem}h3{font-size:1.5rem}h4{font-size:1.25rem}h5{font-size:1.125rem}h6{font-size:1rem}.data-value,.number,.stat-value{font-family:var(--font-number);font-variant-numeric:tabular-nums}.industry-info-bar{background:var(--gradient-primary);border-bottom:1px solid hsla(0,0%,100%,.15);box-shadow:var(--shadow-nav);color:#fff;font-size:14px;line-height:1.6;padding:12px 0}.industry-data-items{align-items:center;display:flex;flex-wrap:wrap;gap:1.5rem;justify-content:center}.industry-focus{background:hsla(0,0%,100%,.25);border-radius:20px;font-size:13px;font-weight:500;padding:4px 12px;white-space:nowrap}.data-item{align-items:center;display:flex;gap:6px;white-space:nowrap}.data-label{font-size:13px;opacity:.9}.data-value{color:var(--industry-secondary);font-size:14px;font-weight:600}.update-time{color:hsla(0,0%,100%,.8);font-size:12px;margin-left:auto;opacity:.85}.industry-navigation{background:var(--bg-primary);border-bottom:1px solid var(--border-light);box-shadow:var(--shadow-nav);position:relative}.industry-navigation.left-logo .gh-navigation-inner{align-items:center;display:flex;justify-content:space-between;margin:0 auto;max-width:var(--container-width);padding:16px 0;padding-left:var(--container-gap);padding-right:var(--container-gap)}.industry-navigation.left-logo .gh-navigation-brand{align-items:center;display:flex;flex-shrink:0;gap:12px}.industry-navigation.left-logo .gh-navigation-menu{display:flex;flex:1;justify-content:center;margin:0 2rem}.industry-navigation.left-logo .gh-navigation-actions{align-items:center;display:flex;flex-shrink:0;gap:12px}.logo-text{align-items:center;display:flex;font-family:var(--font-chinese-title);line-height:1.2}.logo-text strong{color:var(--industry-primary);font-size:1.5rem;font-weight:700;letter-spacing:-.02em}.gh-navigation-members{gap:12px}.signin-link{border-radius:var(--border-radius);color:var(--text-secondary);font-size:14px;font-weight:500;padding:8px 12px;text-decoration:none;transition:color .2s ease}.signin-link:hover{background:rgba(37,99,235,.05);color:var(--industry-primary)}.account-btn,.signin-btn,.signup-btn{background:var(--industry-primary);border:none;border-radius:var(--border-radius);color:#fff;cursor:pointer;font-size:14px;font-weight:500;padding:8px 16px;text-decoration:none;transition:all .2s ease;white-space:nowrap}.account-btn:hover,.signin-btn:hover,.signup-btn:hover{background:#1d4ed8;box-shadow:0 4px 12px rgba(37,99,235,.3);transform:translateY(-1px)}.contact-link{border-radius:var(--border-radius);color:var(--text-secondary);font-size:14px;font-weight:500;padding:8px 12px;text-decoration:none;transition:color .2s ease}.contact-link:hover{background:rgba(37,99,235,.05);color:var(--industry-primary)}.main-nav-wrapper{align-items:center;display:flex;gap:8px}.nav-item-wrapper{position:relative}.nav-item{align-items:center;border-radius:var(--border-radius);color:var(--text-primary);display:flex;font-family:var(--font-chinese);font-size:15px;font-weight:500;gap:4px;padding:12px 16px;text-decoration:none;transition:all .2s ease;white-space:nowrap}.nav-item:hover{background:rgba(37,99,235,.06);color:var(--industry-primary)}.nav-item.active{background:rgba(37,99,235,.1);color:var(--industry-primary);font-weight:600}.dropdown-arrow{font-size:12px;opacity:.7;transition:transform .2s ease}.nav-item-wrapper:hover .dropdown-arrow{opacity:1;transform:rotate(180deg)}.dropdown-menu{background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--border-radius-lg);box-shadow:0 8px 32px rgba(0,0,0,.12);left:50%;margin-top:8px;min-width:320px;opacity:0;position:absolute;top:100%;transform:translateX(-50%) translateY(-8px);transition:all .25s ease;visibility:hidden;z-index:1000}.nav-item-wrapper:hover .dropdown-menu{opacity:1;transform:translateX(-50%) translateY(0);visibility:visible}.dropdown-content{padding:16px}.dropdown-section{display:flex;flex-direction:column;gap:4px}.dropdown-link{align-items:flex-start;border-radius:var(--border-radius);color:var(--text-primary);display:flex;gap:12px;padding:12px;text-decoration:none;transition:all .2s ease}.dropdown-link:hover{background:rgba(37,99,235,.06);transform:translateX(2px)}.link-icon{color:var(--industry-primary);flex-shrink:0;font-size:18px;margin-top:2px}.link-content{flex:1}.link-title{color:var(--text-primary);font-size:14px;font-weight:600;margin-bottom:4px}.link-desc,.link-title{display:block;font-family:var(--font-chinese)}.link-desc{color:var(--text-secondary);font-size:13px;line-height:1.5}.industry-data-panel{background:var(--gradient-subtle);border-bottom:1px solid var(--border-light);margin-bottom:2rem;padding:var(--section-padding)}.data-panel-header{margin-bottom:2.5rem;text-align:center}.panel-title{font-family:var(--font-chinese-title);font-size:1.75rem;letter-spacing:-.02em;margin-bottom:8px}.panel-subtitle{color:var(--text-secondary);font-family:var(--font-chinese);font-size:15px}.data-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));margin-bottom:2rem}.data-card{background:var(--bg-primary);border:1px solid var(--border-light);border-left:4px solid var(--metal-copper);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-card);overflow:hidden;padding:20px;position:relative;transition:all .3s ease}.data-card:before{background:linear-gradient(135deg,transparent 50%,rgba(37,99,235,.05) 0);border-radius:0 0 0 60px;content:"";height:60px;position:absolute;right:0;top:0;width:60px}.data-card:hover{border-color:var(--border-medium);box-shadow:var(--shadow-card-hover);transform:translateY(-3px)}.data-card.copper{border-left-color:var(--metal-copper)}.data-card.aluminum{border-left-color:var(--metal-aluminum)}.data-card.zinc{border-left-color:var(--metal-zinc)}.data-card.nickel{border-left-color:var(--metal-nickel)}.data-card.industry-index{border-left-color:var(--industry-primary)}.data-card.digitalization{border-left-color:var(--industry-accent)}.data-icon{color:var(--industry-primary);font-size:24px;margin-bottom:12px}.data-title{color:var(--text-secondary);font-family:var(--font-chinese);font-size:13px;font-weight:500;margin-bottom:8px}.data-value{color:var(--text-primary);font-family:var(--font-number);font-size:2rem;font-weight:700;line-height:1.2;margin-bottom:6px}.data-change{align-items:center;display:flex;font-size:13px;font-weight:600;gap:4px}.data-change.positive{color:var(--industry-accent)}.data-change.positive:before{content:"↗";font-size:14px}.data-change.negative{color:var(--industry-warning)}.data-change.negative:before{content:"↘";font-size:14px}.data-unit{color:var(--text-tertiary);font-family:var(--font-chinese);font-size:12px;margin-top:4px}.data-panel-footer{align-items:center;border-top:1px solid var(--border-light);display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;padding-top:24px}.update-info{color:var(--text-secondary);display:flex;flex-direction:column;font-family:var(--font-chinese);font-size:13px;gap:4px}.update-info strong{color:var(--text-primary);font-weight:600}.view-more-btn{align-items:center;background:var(--industry-primary);border-radius:var(--border-radius);color:#fff;display:flex;font-family:var(--font-chinese);font-size:14px;font-weight:500;gap:6px;padding:10px 20px;text-decoration:none;transition:all .2s ease}.view-more-btn:hover{background:#1d4ed8;box-shadow:0 4px 12px rgba(37,99,235,.3);transform:translateY(-1px)}.view-more-btn:after{content:"→";font-size:14px;transition:transform .2s ease}.view-more-btn:hover:after{transform:translateX(2px)}.industry-quick-nav{background:var(--bg-primary);padding:var(--section-padding)}.section-title{color:var(--industry-primary);font-family:var(--font-chinese-title);font-size:1.5rem;font-weight:700;letter-spacing:-.02em;margin-bottom:8px}.section-subtitle{color:var(--text-secondary);font-family:var(--font-chinese);font-size:15px;margin-bottom:2rem}.quick-nav-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}.nav-card{background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-card);color:inherit;overflow:hidden;padding:24px;position:relative;text-decoration:none;transition:all .3s ease}.nav-card:before{background:var(--gradient-primary);content:"";height:3px;left:0;position:absolute;right:0;top:0;transform:scaleX(0);transition:transform .3s ease}.nav-card:hover{border-color:var(--industry-primary);box-shadow:var(--shadow-card-hover);transform:translateY(-4px)}.nav-card:hover:before{transform:scaleX(1)}.card-icon{align-items:center;background:rgba(37,99,235,.1);border-radius:var(--border-radius);color:var(--industry-primary);display:flex;height:40px;justify-content:center;margin-bottom:16px;width:40px}.card-icon svg{height:24px;width:24px}.card-title{color:var(--text-primary);font-family:var(--font-chinese-title);font-size:1.125rem;font-weight:600;margin-bottom:8px}.card-description{color:var(--text-secondary);font-family:var(--font-chinese);font-size:14px;line-height:1.6;margin-bottom:16px}.card-stats{align-items:center;display:flex;justify-content:space-between}.stat-item{font-family:var(--font-chinese);font-size:13px;font-weight:500}.stat-item:first-child{color:var(--text-secondary)}.stat-item:last-child{background:var(--industry-secondary);border-radius:4px;color:#fff;font-size:12px;font-weight:600;padding:4px 8px}.expert-insights{background:var(--bg-secondary);padding:var(--section-padding)}.section-header{align-items:flex-end;display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;margin-bottom:2rem}.view-all-link{align-items:center;color:var(--industry-primary);display:flex;font-family:var(--font-chinese);font-size:14px;font-weight:500;gap:4px;text-decoration:none;transition:all .2s ease}.view-all-link:hover{color:#1d4ed8;transform:translateX(2px)}.view-all-link:after{content:"→";font-size:14px;transition:transform .2s ease}.view-all-link:hover:after{transform:translateX(2px)}.expert-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(360px,1fr))}.expert-card{background:var(--bg-primary);border:1px solid var(--border-light);padding:20px}.expert-card:hover{border-color:var(--border-medium);transform:translateY(-2px)}.expert-meta{align-items:center;display:flex;gap:12px;margin-bottom:16px}.expert-avatar{border:2px solid var(--border-light);flex-shrink:0;height:48px;width:48px}.expert-info{flex:1}.expert-name{color:var(--text-primary);font-family:var(--font-chinese-title);font-size:15px;font-weight:600;margin:0 0 2px}.expert-title{color:var(--text-secondary);font-family:var(--font-chinese);font-size:13px;margin:0}.insight-title{font-family:var(--font-chinese-title);font-size:1rem;font-weight:600;line-height:1.4;margin-bottom:8px}.insight-title a{color:var(--text-primary);text-decoration:none;transition:color .2s ease}.insight-title a:hover{color:var(--industry-primary)}.insight-excerpt{-webkit-line-clamp:3;-webkit-box-orient:vertical;color:var(--text-secondary);display:-webkit-box;font-family:var(--font-chinese);font-size:14px;line-height:1.6;margin-bottom:16px;overflow:hidden}.insight-footer{align-items:center;border-top:1px solid var(--border-light);display:flex;justify-content:space-between;padding-top:12px}.insight-tags{display:flex;flex-wrap:wrap;gap:6px}.tag{background:rgba(37,99,235,.1);border:1px solid rgba(37,99,235,.2);border-radius:4px;color:var(--industry-primary);font-family:var(--font-chinese);font-size:12px;font-weight:500;padding:2px 8px}.insight-date{color:var(--text-tertiary);font-family:var(--font-number);font-size:12px;white-space:nowrap}.technology-trends{padding:var(--section-padding)}.tech-categories{background:#fff;border-radius:var(--border-radius-lg);box-shadow:var(--shadow-card);overflow:hidden}.tech-nav{border-bottom:1px solid var(--color-border);display:flex;overflow-x:auto}.tech-tab{background:none;border:none;color:var(--color-secondary-text);cursor:pointer;flex:1;font-size:.875rem;font-weight:500;padding:1rem 1.5rem;transition:all .2s ease;white-space:nowrap}.tech-tab.active{background:rgba(30,64,175,.05);border-bottom:2px solid var(--industry-primary);color:var(--industry-primary)}.tech-tab:hover:not(.active){background:var(--color-lighter-gray)}.tech-content{position:relative}.tech-panel{display:none;padding:2rem}.tech-panel.active{display:block}.tech-articles{display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.tech-article{border:1px solid var(--color-border);border-radius:var(--border-radius);display:flex;gap:1rem;padding:1rem;transition:all .2s ease}.tech-article:hover{border-color:var(--industry-primary);box-shadow:var(--shadow-data-panel)}.article-image{flex-shrink:0;height:80px;width:80px}.article-image,.placeholder-image{border-radius:var(--border-radius)}.placeholder-image{height:100%;width:100%}.placeholder-image.ai-bg{background:linear-gradient(135deg,#667eea,#764ba2)}.placeholder-image.iot-bg{background:linear-gradient(135deg,#f093fb,#f5576c)}.placeholder-image.data-bg{background:linear-gradient(135deg,#4facfe,#00f2fe)}.placeholder-image.blockchain-bg{background:linear-gradient(135deg,#43e97b,#38f9d7)}.article-content{flex:1}.article-title{font-size:.875rem;margin-bottom:.5rem}.article-excerpt{font-size:.75rem;line-height:1.5;margin-bottom:.5rem}.article-meta{font-size:.75rem}.article-category{background:var(--industry-secondary);border-radius:.25rem;color:#fff;font-size:.625rem;padding:.125rem .375rem}.company-showcase{background:#f8fafc;padding:var(--section-padding)}.company-grid{display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(350px,1fr))}.company-card{padding:var(--card-padding)}.company-card.featured{position:relative}.company-card.featured:before{background:var(--industry-primary);border-radius:.375rem;color:#fff;content:"标杆企业";font-size:.75rem;font-weight:500;padding:.25rem .75rem;position:absolute;right:1rem;top:-.5rem}.company-header{margin-bottom:1rem}.logo-fallback{font-weight:600}.company-badge{background:var(--industry-accent);border-radius:.25rem;color:#fff;font-size:.75rem;font-weight:500;padding:.25rem .5rem}.company-name{font-weight:600;margin-bottom:.25rem}.company-type{font-size:.875rem;margin-bottom:1rem}.showcase-title{color:var(--industry-primary);font-size:1rem;font-weight:600;margin-bottom:.5rem}.showcase-description{color:var(--color-secondary-text);line-height:1.6;margin-bottom:1rem}.achievement-tags{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1rem}.achievement-tags .tag{background:rgba(30,64,175,.1);border:1px solid rgba(30,64,175,.2);color:var(--industry-primary)}.company-stats{border-top:1px solid var(--color-border);display:flex;justify-content:space-around;padding-top:1rem}.stat-value{font-size:1.5rem}.stat-label{font-size:.875rem}@media (max-width:1024px){.industry-navigation.left-logo .gh-navigation-inner{padding-left:20px;padding-right:20px}.main-nav-wrapper{gap:4px}.nav-item{font-size:14px;padding:10px 12px}}@media (max-width:991px){.industry-navigation.left-logo .gh-navigation-menu{display:none}.gh-navigation-members,.industry-navigation.left-logo .gh-navigation-actions{gap:8px}.account-btn,.signin-btn,.signup-btn{font-size:13px;padding:6px 12px}.contact-link,.signin-link{font-size:13px;padding:6px 8px}.dropdown-menu{background:var(--bg-secondary);border:none;border-radius:0;box-shadow:none;margin-top:0;min-width:100%;opacity:1;position:static;transform:none;visibility:visible}.nav-item-wrapper:hover .dropdown-menu{display:block}.dropdown-content{padding:8px}.dropdown-link{background:var(--bg-primary);border-radius:var(--border-radius);font-size:13px;margin-bottom:4px;padding:8px}.main-nav-wrapper{flex-direction:column;gap:0;width:100%}.nav-item-wrapper{border-bottom:1px solid var(--border-light);width:100%}.nav-item{border-radius:0;font-size:15px;justify-content:space-between;padding:12px 16px;width:100%}}@media (max-width:768px){:root{--section-padding:2.5rem 0;--card-padding:16px}.industry-navigation.left-logo .gh-navigation-inner{padding:12px 16px}.logo-text strong{font-size:1.25rem}.industry-info-bar{font-size:13px;padding:8px 0}.industry-data-items{flex-direction:column;gap:12px;text-align:center}.data-item,.industry-data-items{justify-content:center}.update-time{margin-left:0;margin-top:8px;text-align:center;width:100%}.company-grid,.data-grid,.expert-grid,.quick-nav-grid{gap:16px;grid-template-columns:1fr}.tech-articles{gap:12px;grid-template-columns:1fr}.tech-article{flex-direction:column;padding:16px}.article-image{height:160px;width:100%}.section-header{gap:8px}.data-panel-footer,.section-header{align-items:flex-start;flex-direction:column}.data-panel-footer{gap:12px}.panel-title{font-size:1.5rem}.section-title{font-size:1.25rem}.card-title{font-size:1rem}.expert-meta{gap:10px}.expert-avatar{height:40px;width:40px}.expert-name{font-size:14px}.expert-title{font-size:12px}}@media (max-width:480px){:root{--section-padding:2rem 0;--card-padding:12px}.industry-navigation.left-logo .gh-navigation-inner{padding:10px 12px}.logo-text 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