/* EHS安环风向标 样式表 v1.2 - 明亮专业版 */
:root{--primary:#1a5c7a;--primary-light:#2980b9;--accent:#e67e22;--accent-light:#f39c12;--success:#27ae60;--danger:#c0392b;--bg:#f4f7fb;--card:#ffffff;--text:#2c3e50;--text-muted:#7f8c8d;--border:#e1e8ef;--shadow:0 2px 12px rgba(26,92,122,0.08);--shadow-hover:0 6px 20px rgba(26,92,122,0.15);--radius:14px;--header-height:60px}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}ul{list-style:none}img{max-width:100%;display:block}
.header{position:fixed;top:0;left:0;right:0;height:var(--header-height);background:rgba(255,255,255,0.97);backdrop-filter:blur(10px);box-shadow:0 1px 8px rgba(26,92,122,0.08);z-index:1000;display:flex;align-items:center;justify-content:space-between;padding:0 28px}
.logo{font-size:20px;font-weight:700;color:var(--primary);display:flex;align-items:center;gap:10px}
.logo-icon{width:38px;height:38px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;box-shadow:0 3px 10px rgba(26,92,122,0.25)}
.nav{display:flex;gap:4px}
.nav a{display:flex;align-items:center;gap:7px;font-size:14px;color:var(--text-muted);font-weight:500;transition:all 0.2s;padding:8px 14px;border-radius:8px}
.nav a .nav-icon{font-size:15px;opacity:1;transition:all 0.2s}
.nav a:hover,.nav a.active{color:var(--primary);background:#f0f7fa}
.nav a:hover .nav-icon,.nav a.active .nav-icon{opacity:1;transform:scale(1.1)}
.nav a.active{font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px}
.search-btn{width:36px;height:36px;background:var(--bg);border:1px solid var(--border);border-radius:10px;cursor:pointer;font-size:15px;display:flex;align-items:center;justify-content:center;transition:all 0.2s}
.search-btn:hover{border-color:var(--primary);color:var(--primary)}
.menu-toggle{display:none;background:none;border:none;font-size:22px;cursor:pointer;color:var(--text)}
.main{padding-top:var(--header-height);min-height:100vh}
.hero-section{display:grid;grid-template-columns:1fr 300px;gap:20px;padding:24px;max-width:1380px;margin:0 auto}
.hero-case{position:relative;border-radius:var(--radius);overflow:hidden;min-height:400px;background:linear-gradient(150deg,#1a5c7a 0%,#2174a5 40%,#2980b9 70%,#3498db 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:36px;box-shadow:var(--shadow)}
.hero-badge{display:flex;gap:8px;margin-bottom:12px;position:relative;z-index:2}
.hero-badge-item{display:flex;align-items:center;gap:5px;background:rgba(255,255,255,0.15);backdrop-filter:blur(8px);padding:5px 12px;border-radius:20px;font-size:12px;color:#fff;border:1px solid rgba(255,255,255,0.2)}
.hero-content{position:relative;z-index:2;color:#fff}
.category-tag{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,0.2);backdrop-filter:blur(8px);padding:5px 14px;border-radius:20px;font-size:12px;font-weight:600;margin-bottom:14px;border:1px solid rgba(255,255,255,0.25)}
.hero-case h1{font-size:28px;font-weight:700;margin-bottom:12px;line-height:1.35;text-shadow:0 2px 8px rgba(0,0,0,0.15)}
.hero-case p{font-size:14px;opacity:1;margin-bottom:16px;line-height:1.7}
.hero-case .meta{font-size:12px;opacity:0.95;display:flex;gap:14px;flex-wrap:wrap}
.hero-case .meta span{display:flex;align-items:center;gap:4px}
.read-more{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--primary);padding:11px 22px;border-radius:8px;font-weight:600;font-size:14px;transition:all 0.25s;box-shadow:0 4px 14px rgba(0,0,0,0.15)}
.read-more:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,0.2)}
.hero-tools{background:var(--card);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px;border:1px solid var(--border)}
.hero-tools h3{font-size:15px;color:var(--text);font-weight:600;margin-bottom:1px}
.hero-tools .subtitle{font-size:12px;color:var(--text-muted);margin-bottom:8px}
.tool-card{background:linear-gradient(135deg,#f8fbfd,#edf4f8);border-radius:12px;padding:18px;border:1px solid var(--border);transition:all 0.25s;position:relative;overflow:hidden}
.tool-card::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(180deg,var(--primary),var(--primary-light))}
.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--primary)}
.tool-card .tool-icon{font-size:28px;margin-bottom:10px}
.tool-card h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:5px}
.tool-card p{font-size:12px;color:var(--text-muted);margin-bottom:12px;line-height:1.5}
.tool-btn{display:inline-flex;align-items:center;gap:5px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;padding:7px 14px;border-radius:6px;font-size:12px;font-weight:500;transition:all 0.2s}
.tool-btn:hover{box-shadow:0 4px 12px rgba(26,92,122,0.25)}
.stats-bar{display:flex;justify-content:center;gap:56px;padding:20px 24px;background:var(--card);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.stat-item{text-align:center;position:relative}
.stat-item::after{content:'';position:absolute;right:-28px;top:50%;transform:translateY(-50%);width:1px;height:30px;background:var(--border)}
.stat-item:last-child::after{display:none}
.stat-item .num{font-size:26px;font-weight:700;color:var(--primary)}
.stat-item .label{font-size:12px;color:var(--text-muted);margin-top:2px}
.content-section{display:grid;grid-template-columns:250px 1fr;gap:22px;padding:24px;max-width:1380px;margin:0 auto}
.sidebar{display:flex;flex-direction:column;gap:18px}
.sidebar-card{background:var(--card);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);border:1px solid var(--border)}
.sidebar-card h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--primary)}
.category-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.category-item{background:linear-gradient(135deg,#f8fbfd,#edf4f8);border-radius:10px;padding:14px 8px;text-align:center;transition:all 0.25s;cursor:pointer;border:1px solid var(--border)}
.category-item:hover{border-color:var(--primary);background:linear-gradient(135deg,#f0f7fa,#e8f4fa);transform:translateY(-2px)}
.category-item .cat-icon{font-size:24px;margin-bottom:6px}
.category-item .cat-name{font-size:12px;font-weight:500;color:var(--text)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag-item{background:var(--bg);padding:5px 12px;border-radius:20px;font-size:12px;color:var(--text-muted);transition:all 0.2s;cursor:pointer;border:1px solid var(--border)}
.tag-item:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.reg-list{display:flex;flex-direction:column;gap:10px}
.reg-item{padding:12px;background:linear-gradient(135deg,#f8fbfd,#fafcfe);border-radius:8px;border-left:3px solid var(--primary);transition:all 0.2s}
.reg-item:hover{background:#f0f7fa;border-left-color:var(--accent)}
.reg-item .reg-title{font-size:13px;font-weight:500;color:var(--text);margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.5}
.reg-item .reg-date{font-size:11px;color:var(--text-muted)}
.main-content{display:flex;flex-direction:column;gap:22px}
.section-title{font-size:17px;font-weight:600;color:var(--text);margin-bottom:14px;display:flex;align-items:center;gap:10px}
.section-title::before{content:'';width:4px;height:18px;background:linear-gradient(180deg,var(--primary),var(--primary-light));border-radius:2px}
.section-title .more{font-size:13px;color:var(--primary);font-weight:400;margin-left:auto}
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case-card{background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:all 0.25s;cursor:pointer;border:1px solid var(--border)}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--accent)}
.case-img{height:130px;background:linear-gradient(135deg,#e8f4fa,#d0e8f5);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:38px;position:relative}
.case-img::after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent))}
.case-body{padding:14px}
.case-tag{display:inline-block;padding:3px 8px;border-radius:4px;font-size:10px;font-weight:700;margin-bottom:8px}
.tag-chemical{background:#fff3e0;color:#e67e22}
.tag-mining{background:#e8f4fa;color:#1a5c7a}
.tag-fire{background:#ffebee;color:#c0392b}
.case-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.5}
.case-desc{font-size:12px;color:var(--text-muted);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.5}
.case-meta{font-size:11px;color:var(--text-muted);display:flex;gap:10px}
.articles-list{display:flex;flex-direction:column;gap:12px}
.article-item{background:var(--card);border-radius:var(--radius);padding:14px;display:flex;gap:14px;box-shadow:var(--shadow);transition:all 0.2s;border:1px solid var(--border);border-left:3px solid transparent}
.article-item:hover{box-shadow:var(--shadow-hover);border-left-color:var(--primary)}
.article-icon{width:44px;height:44px;background:linear-gradient(135deg,#f0f7fa,#e8f4fa);border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:18px;flex-shrink:0}
.article-body{flex:1;min-width:0}
.article-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:5px;line-height:1.4}
.article-title:hover{color:var(--primary)}
.article-meta{font-size:11px;color:var(--text-muted);display:flex;gap:10px;flex-wrap:wrap}
.footer{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;padding:48px 24px 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;max-width:1380px;margin:0 auto}
.footer-logo{font-size:20px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.footer-brand p{font-size:13px;opacity:0.95;line-height:1.7}
.footer-col h5{font-size:13px;font-weight:600;margin-bottom:14px;opacity:0.9}
.footer-col ul{display:flex;flex-direction:column;gap:8px}
.footer-col a{font-size:13px;opacity:1;transition:opacity 0.2s}
.footer-col a:hover{opacity:1}
.footer-bottom{max-width:1380px;margin:28px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,0.15);font-size:12px;opacity:1;text-align:center}
.mobile-tab-nav{position:fixed;bottom:0;left:0;right:0;background:rgba(255,255,255,0.97);backdrop-filter:blur(10px);box-shadow:0 -2px 12px rgba(0,0,0,0.08);display:flex;justify-content:space-around;padding:8px 0;z-index:1000}
.tab-item{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:10px;color:var(--text-muted);background:none;border:none;cursor:pointer;padding:4px 10px;transition:color 0.2s}
.tab-item.active{color:var(--primary)}
.tab-item .tab-icon{font-size:20px}
@media(max-width:1024px){.hero-section{grid-template-columns:1fr}.hero-tools{display:grid;grid-template-columns:1fr 1fr;gap:14px}.content-section{grid-template-columns:1fr}.sidebar{display:grid;grid-template-columns:1fr 1fr}.cases-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){:root{--header-height:50px}.nav{display:none}.menu-toggle{display:block}.hero-section{padding:14px;gap:14px}.hero-case{min-height:300px;padding:20px}.hero-case h1{font-size:20px}.hero-tools{grid-template-columns:1fr}.stats-bar{gap:24px;flex-wrap:wrap}.stat-item .num{font-size:20px}.sidebar{grid-template-columns:1fr}.cases-grid{grid-template-columns:1fr}.case-card{display:flex}.case-card .case-img{width:90px;height:auto;min-height:90px}.case-card .case-body{flex:1}.article-item{flex-direction:column}.article-item .article-icon{width:36px;height:36px;font-size:14px}.footer-grid{grid-template-columns:1fr;gap:24px}.main{padding-bottom:70px}}