/* === 高端门户网站样式 === */
:root{--primary:#0a0e27;--accent:#d4af37;--blue:#2563eb;--dark:#060818;--card:#111631;--text:#e2e8f0;--muted:#94a3b8;--border:#1e2a4a;--hover:#1a2244;--gold-light:#f0d860;--success:#10b981;--danger:#ef4444}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","Microsoft YaHei",sans-serif;background:var(--dark);color:var(--text);line-height:1.8;overflow-x:hidden}
a{color:var(--accent);text-decoration:none;transition:color .3s}
a:hover{color:var(--gold-light)}
img{max-width:100%;height:auto}
.container{max-width:1280px;margin:0 auto;padding:0 20px}
/* === 顶部导航 === */
.top-bar{background:var(--primary);border-bottom:1px solid var(--border);padding:8px 0;font-size:13px;color:var(--muted)}
.top-bar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.top-bar a{color:var(--muted)}
.top-bar a:hover{color:var(--accent)}
.main-header{background:linear-gradient(135deg,var(--primary) 0%,#0d1230 100%);border-bottom:2px solid var(--accent);box-shadow:0 4px 20px rgba(0,0,0,.5);position:sticky;top:0;z-index:1000}
.nav-wrapper{display:flex;align-items:center;justify-content:space-between;padding:12px 0}
.logo{font-size:26px;font-weight:800;color:var(--accent);letter-spacing:1px;text-shadow:0 2px 10px rgba(212,175,55,.3)}
.logo span{color:var(--text);font-size:14px;font-weight:400;display:block;margin-top:-2px}
.main-nav{display:flex;list-style:none;gap:2px}
.main-nav>li{position:relative}
.main-nav>li>a{display:block;padding:14px 18px;color:var(--text);font-size:15px;font-weight:500;border-radius:6px;transition:all .3s}
.main-nav>li>a:hover,.main-nav>li.active>a{background:var(--hover);color:var(--accent)}
.main-nav .dropdown{position:absolute;top:100%;left:0;background:var(--card);border:1px solid var(--border);border-radius:8px;min-width:200px;box-shadow:0 8px 30px rgba(0,0,0,.6);opacity:0;visibility:hidden;transform:translateY(10px);transition:all .3s;z-index:100}
.main-nav li:hover>.dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:block;padding:10px 16px;color:var(--text);border-bottom:1px solid var(--border);font-size:14px}
.dropdown a:last-child{border-bottom:none}
.dropdown a:hover{background:var(--hover);color:var(--accent)}
.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(10px);background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;width:600px;opacity:0;visibility:hidden;transition:all .3s;z-index:100;box-shadow:0 10px 40px rgba(0,0,0,.7)}
.main-nav li:hover>.mega-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.mega-menu .mm-col{display:inline-block;width:48%;vertical-align:top;padding:0 10px}
.mega-menu .mm-title{color:var(--accent);font-weight:700;font-size:14px;margin-bottom:8px;padding-bottom:6px;border-bottom:1px solid var(--border)}
.mega-menu a{display:block;padding:6px 0;font-size:13px}
.mobile-toggle{display:none;font-size:24px;color:var(--accent);cursor:pointer;background:none;border:none}
/* === Hero区域 === */
.hero{background:linear-gradient(135deg,#0a0e27 0%,#0d1b3e 50%,#10205e 100%);padding:50px 0 40px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;right:-10%;width:500px;height:500px;background:radial-gradient(circle,rgba(212,175,55,.08) 0%,transparent 70%);border-radius:50%}
.hero::after{content:'';position:absolute;bottom:-30%;left:-5%;width:400px;height:400px;background:radial-gradient(circle,rgba(37,99,235,.08) 0%,transparent 70%);border-radius:50%}
.hero-content{position:relative;z-index:2}
.hero h1{font-size:36px;font-weight:800;color:var(--text);margin-bottom:12px;text-shadow:0 2px 10px rgba(0,0,0,.5)}
.hero h1 .highlight{color:var(--accent)}
.hero p{font-size:16px;color:var(--muted);max-width:700px;margin-bottom:20px}
.hero-stats{display:flex;gap:30px;flex-wrap:wrap}
.hero-stat{text-align:left}
.hero-stat .num{font-size:28px;font-weight:800;color:var(--accent)}
.hero-stat .label{font-size:13px;color:var(--muted)}
/* === 搜索栏 === */
.search-bar{background:var(--card);border:1px solid var(--border);border-radius:30px;padding:6px;display:flex;max-width:500px;margin:20px 0}
.search-bar input{flex:1;background:none;border:none;color:var(--text);padding:8px 16px;font-size:14px;outline:none}
.search-bar button{background:var(--accent);color:var(--primary);border:none;border-radius:24px;padding:8px 24px;font-size:14px;font-weight:600;cursor:pointer;transition:all .3s}
.search-bar button:hover{background:var(--gold-light)}
/* === 板块布局 === */
.section{padding:40px 0;border-bottom:1px solid var(--border)}
.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.section-title{font-size:22px;font-weight:700;color:var(--text);border-left:4px solid var(--accent);padding-left:12px}
.section-title .sub{font-size:13px;color:var(--muted);font-weight:400;display:block;margin-top:2px}
.more-link{font-size:14px;color:var(--accent)}
.main-grid{display:grid;grid-template-columns:1fr 320px;gap:30px}
.content-area{min-width:0}
.sidebar{min-width:0}
/* === 文章卡片 === */
.article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.article-card{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:all .3s}
.article-card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 10px 30px rgba(0,0,0,.4)}
.article-card .card-body{padding:16px}
.article-card .cat-tag{display:inline-block;background:rgba(212,175,55,.15);color:var(--accent);padding:2px 10px;border-radius:4px;font-size:12px;margin-bottom:8px}
.article-card h3{font-size:16px;font-weight:600;color:var(--text);margin-bottom:8px;line-height:1.5}
.article-card h3:hover{color:var(--accent)}
.article-card p{font-size:14px;color:var(--muted);line-height:1.7;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}
.article-card .meta{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-top:10px;padding-top:10px;border-top:1px solid var(--border)}
/* === 列表样式 === */
.article-list{list-style:none}
.article-list li{padding:14px 0;border-bottom:1px solid var(--border);display:flex;align-items:start;gap:12px}
.article-list li:last-child{border-bottom:none}
.article-list .num{flex-shrink:0;width:28px;height:28px;background:var(--primary);border:1px solid var(--accent);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--accent);font-weight:700;font-size:13px}
.article-list a{color:var(--text);font-size:15px;font-weight:500}
.article-list a:hover{color:var(--accent)}
.article-list .info{font-size:12px;color:var(--muted);margin-top:2px}
/* === 侧边栏 === */
.widget{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px}
.widget-title{font-size:16px;font-weight:700;color:var(--accent);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.widget ul{list-style:none}
.widget li{padding:8px 0;border-bottom:1px solid var(--border);font-size:14px}
.widget li:last-child{border-bottom:none}
.widget li a{color:var(--text)}
.widget li a:hover{color:var(--accent)}
/* === 工具卡片 === */
.tools-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tool-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;text-align:center;transition:all .3s;cursor:pointer}
.tool-card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 8px 25px rgba(0,0,0,.4)}
.tool-icon{width:50px;height:50px;background:linear-gradient(135deg,var(--accent),var(--blue));border-radius:12px;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-size:24px}
.tool-card h4{font-size:15px;color:var(--text);margin-bottom:4px}
.tool-card p{font-size:12px;color:var(--muted)}
/* === 工具页面 === */
.tool-box{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:30px;margin-bottom:20px}
.tool-box h2{color:var(--accent);font-size:20px;margin-bottom:20px}
.form-group{margin-bottom:16px}
.form-group label{display:block;color:var(--muted);font-size:14px;margin-bottom:6px}
.form-group input,.form-group select{width:100%;background:var(--primary);border:1px solid var(--border);border-radius:8px;padding:10px 14px;color:var(--text);font-size:14px;outline:none}
.form-group input:focus,.form-group select:focus{border-color:var(--accent)}
.btn-calc{background:linear-gradient(135deg,var(--accent),var(--gold-light));color:var(--primary);border:none;border-radius:8px;padding:12px 30px;font-size:15px;font-weight:700;cursor:pointer;transition:all .3s}
.btn-calc:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(212,175,55,.4)}
.result-box{background:var(--primary);border:1px solid var(--accent);border-radius:12px;padding:20px;margin-top:16px}
.result-box .label{color:var(--muted);font-size:13px}
.result-box .value{color:var(--accent);font-size:28px;font-weight:800}
/* === 文章详情 === */
.breadcrumb{padding:16px 0;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{margin:0 6px}
.article-detail{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:30px}
.article-detail h1{font-size:28px;font-weight:800;color:var(--text);margin-bottom:12px;line-height:1.4}
.article-meta{display:flex;gap:20px;font-size:13px;color:var(--muted);margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.article-content{font-size:16px;line-height:2;color:var(--text)}
.article-content p{margin-bottom:16px;text-indent:2em}
.article-content h2{font-size:20px;color:var(--accent);margin:24px 0 12px;padding-left:10px;border-left:3px solid var(--accent)}
.article-content h3{font-size:17px;color:var(--text);margin:20px 0 8px}
.article-content ul,.article-content ol{margin:12px 0 12px 24px}
.article-content li{margin-bottom:6px}
.article-tags{margin-top:24px;padding-top:16px;border-top:1px solid var(--border)}
.article-tag{display:inline-block;background:var(--primary);color:var(--muted);padding:4px 12px;border-radius:4px;font-size:12px;margin:2px}
.related-articles{margin-top:30px}
.related-articles h3{font-size:18px;color:var(--accent);margin-bottom:16px}
/* === 分类页 === */
.category-header{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px;margin-bottom:24px}
.category-header h1{font-size:24px;color:var(--accent);margin-bottom:6px}
.category-header p{color:var(--muted);font-size:14px}
.pagination{display:flex;justify-content:center;gap:6px;margin-top:30px}
.pagination a,.pagination span{display:inline-block;padding:8px 14px;background:var(--card);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px}
.pagination .active{background:var(--accent);color:var(--primary);font-weight:600}
.pagination a:hover{border-color:var(--accent)}
/* === 页脚 === */
.footer{background:linear-gradient(180deg,var(--primary) 0%,var(--dark) 100%);border-top:2px solid var(--accent);padding:40px 0 20px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.footer-brand .logo{margin-bottom:12px}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.7}
.footer-col h4{color:var(--accent);font-size:15px;margin-bottom:14px;font-weight:600}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:8px}
.footer-col a{color:var(--muted);font-size:14px}
.footer-col a:hover{color:var(--accent)}
.contact-box{background:var(--card);border:1px solid var(--accent);border-radius:12px;padding:20px;margin-bottom:20px}
.contact-box h4{color:var(--accent);font-size:16px;margin-bottom:10px}
.contact-box p{color:var(--text);font-size:14px;margin-bottom:4px}
.contact-box .phone{font-size:20px;font-weight:800;color:var(--accent)}
.friend-links{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px}
.friend-links h4{color:var(--accent);font-size:15px;margin-bottom:12px}
.friend-links a{display:inline-block;color:var(--muted);font-size:13px;margin:3px 8px 3px 0;padding:2px 8px;background:var(--primary);border-radius:4px}
.friend-links a:hover{color:var(--accent);border:1px solid var(--accent)}
.footer-bottom{border-top:1px solid var(--border);padding-top:20px;text-align:center;color:var(--muted);font-size:13px}
/* === 响应式 === */
@media(max-width:1024px){.main-grid{grid-template-columns:1fr}.article-grid{grid-template-columns:1fr}.tools-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--card);flex-direction:column;padding:10px;box-shadow:0 8px 30px rgba(0,0,0,.5)}.main-nav.active{display:flex}.main-nav>li{width:100%}.main-nav .dropdown,.main-nav .mega-menu{position:static;display:none;width:100%;transform:none;opacity:1;visibility:visible}.main-nav li:hover>.dropdown,.main-nav li:hover>.mega-menu{display:block}.mobile-toggle{display:block}.hero h1{font-size:26px}.tools-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:1/-1}}
/* === 动画 === */
@keyframes fadeIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeIn .6s ease-out}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.pulse{animation:pulse 2s infinite}
/* === 滚动条 === */
::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-track{background:var(--dark)}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--accent)}