:root {
  --bg:      #f8fafc;
  --bg2:     #ffffff;
  --bg3:     #f1f5f9;
  --primary: #1d4ed8;
  --pri-lt:  #eff6ff;
  --green:   #059669;
  --grn-lt:  #ecfdf5;
  --red:     #dc2626;
  --red-lt:  #fef2f2;
  --yellow:  #d97706;
  --text:    #1e293b;
  --text2:   #64748b;
  --border:  #e2e8f0;
  --shadow:  0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.05);
  --shadow2: 0 4px 16px rgba(0,0,0,.10);
  --radius:  8px;
  --radius2: 12px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:'PingFang SC','Microsoft YaHei',Arial,sans-serif;font-size:15px;line-height:1.7}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
ul{list-style:none}

/* ===== Container ===== */
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== Header ===== */
.hdr{background:var(--bg2);border-bottom:1px solid var(--border);box-shadow:var(--shadow);position:sticky;top:0;z-index:100}
.hdr-inner{display:flex;align-items:center;gap:24px;height:60px}
.brand{display:flex;align-items:center;gap:8px;flex-shrink:0;font-size:18px;font-weight:700;color:var(--text)}
.brand:hover{text-decoration:none;color:var(--primary)}
.brand-icon{font-size:22px}
.hdr-nav{display:flex;gap:2px;flex:1}
.hdr-nav a{padding:6px 12px;border-radius:var(--radius);color:var(--text2);font-size:14px;white-space:nowrap;transition:background .15s,color .15s}
.hdr-nav a:hover,.hdr-nav a.active{background:var(--pri-lt);color:var(--primary);text-decoration:none}
.hdr-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.search-wrap{display:flex;align-items:center;background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.search-wrap input{background:none;border:none;outline:none;padding:7px 12px;color:var(--text);font-size:13px;width:180px}
.search-wrap button{padding:7px 10px;background:none;color:var(--text2);font-size:14px;cursor:pointer}
.menu-btn{display:none;font-size:20px;background:none;border:none;color:var(--text2);cursor:pointer;padding:4px}
.mob-nav{display:none;flex-direction:column;background:var(--bg2);border-top:1px solid var(--border);padding:8px 20px 12px}
.mob-nav a{display:block;padding:9px 0;color:var(--text2);font-size:14px;border-bottom:1px solid var(--border)}
.mob-nav a:last-child{border:none}

/* ===== Hero ===== */
.hero{background:linear-gradient(135deg,#1e3a8a 0%,#1d4ed8 50%,#0369a1 100%);color:#fff;padding:60px 0;text-align:center;position:relative;overflow:hidden}
.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='0.04'%3E%3Ccircle cx='30' cy='30' r='20'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat}
.hero-inner{position:relative}
.hero-tag{display:inline-block;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);color:#fff;font-size:13px;padding:4px 14px;border-radius:20px;margin-bottom:16px}
.hero h1{font-size:2.4rem;font-weight:800;margin-bottom:14px;line-height:1.25}
.hero-sub{font-size:1.05rem;opacity:.9;margin-bottom:28px;max-width:600px;margin-left:auto;margin-right:auto}
.hero-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn-hero{padding:10px 26px;border-radius:var(--radius);font-size:14px;font-weight:600;cursor:pointer;transition:opacity .2s}
.btn-hero:hover{opacity:.85;text-decoration:none}
.btn-white{background:#fff;color:var(--primary)}
.btn-outline-white{background:transparent;border:2px solid rgba(255,255,255,.6);color:#fff}
.hero-stats{display:flex;gap:40px;justify-content:center;margin-top:36px;flex-wrap:wrap}
.hs-item{text-align:center}
.hs-num{font-size:2rem;font-weight:700;color:#fff}
.hs-label{font-size:12px;opacity:.75;margin-top:2px}

/* ===== Section ===== */
.section{padding:48px 0}
.section-alt{background:var(--bg3)}
.section-hd{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.section-title{font-size:1.3rem;font-weight:700;color:var(--text);display:flex;align-items:center;gap:8px}
.section-title::before{content:'';display:block;width:4px;height:20px;background:var(--primary);border-radius:2px}
.view-all{font-size:13px;color:var(--primary)}

/* ===== Cards ===== */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);overflow:hidden;box-shadow:var(--shadow);transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:var(--shadow2);transform:translateY(-2px);text-decoration:none}
.card-img{width:100%;height:160px;object-fit:cover;background:linear-gradient(135deg,var(--pri-lt),var(--grn-lt));display:flex;align-items:center;justify-content:center;font-size:3rem}
.card-body{padding:16px}
.card-tag{display:inline-block;font-size:11px;font-weight:600;padding:2px 8px;border-radius:4px;margin-bottom:8px}
.tag-blue{background:var(--pri-lt);color:var(--primary)}
.tag-green{background:var(--grn-lt);color:var(--green)}
.tag-red{background:var(--red-lt);color:var(--red)}
.tag-yellow{background:#fefce8;color:var(--yellow)}
.card-title{font-size:15px;font-weight:600;color:var(--text);line-height:1.4;margin-bottom:8px}
.card-desc{font-size:13px;color:var(--text2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:12px;padding-top:10px;border-top:1px solid var(--border)}
.card-date{font-size:12px;color:var(--text2)}
.card-read{font-size:12px;color:var(--primary)}

/* ===== Category Cards ===== */
.cat-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);padding:24px;display:flex;align-items:flex-start;gap:16px;box-shadow:var(--shadow);transition:box-shadow .2s,transform .2s,border-color .2s;text-decoration:none;color:var(--text)}
.cat-card:hover{box-shadow:var(--shadow2);transform:translateY(-2px);border-color:var(--primary);text-decoration:none}
.cat-icon{width:52px;height:52px;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:26px;flex-shrink:0}
.ci-blue{background:var(--pri-lt)}
.ci-green{background:var(--grn-lt)}
.ci-red{background:var(--red-lt)}
.ci-yellow{background:#fefce8}
.ci-purple{background:#f5f3ff}
.cat-info h3{font-size:15px;font-weight:600;margin-bottom:4px}
.cat-info p{font-size:13px;color:var(--text2)}
.cat-count{font-size:12px;color:var(--primary);margin-top:6px;font-weight:500}

/* ===== Article List ===== */
.post-list{display:flex;flex-direction:column;gap:0}
.post-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--border)}
.post-item:last-child{border:none}
.post-num{width:32px;height:32px;border-radius:50%;background:var(--bg3);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--text2);flex-shrink:0;margin-top:2px}
.post-num.n1{background:var(--red);color:#fff}
.post-num.n2{background:var(--yellow);color:#fff}
.post-num.n3{background:#78716c;color:#fff}
.post-content{flex:1}
.post-title-link{font-size:15px;font-weight:600;color:var(--text);line-height:1.4;display:block;margin-bottom:4px}
.post-title-link:hover{color:var(--primary)}
.post-excerpt{font-size:13px;color:var(--text2);margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;gap:12px;font-size:12px;color:var(--text2)}
.post-badge{display:inline-block;font-size:11px;font-weight:600;padding:1px 7px;border-radius:3px;margin-right:6px}

/* ===== Breadcrumb ===== */
.breadcrumb{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text2);padding:14px 0;border-bottom:1px solid var(--border);margin-bottom:28px}
.breadcrumb a{color:var(--text2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{color:var(--text2)}

/* ===== Article Page ===== */
.page-layout{display:grid;grid-template-columns:1fr 280px;gap:32px;padding:40px 0}
.article-wrap{}
.article-hd{margin-bottom:28px}
.article-hd h1{font-size:1.8rem;font-weight:800;color:var(--text);line-height:1.3;margin-bottom:12px}
.article-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.art-meta-item{display:flex;align-items:center;gap:4px;font-size:13px;color:var(--text2)}
.article-body h2{font-size:1.2rem;font-weight:700;color:var(--text);margin:28px 0 12px;padding-left:12px;border-left:3px solid var(--primary)}
.article-body h3{font-size:1.05rem;font-weight:600;color:var(--text);margin:20px 0 8px}
.article-body p{color:var(--text2);margin-bottom:14px;font-size:15px;line-height:1.9}
.article-body ul{margin:12px 0 14px 20px;list-style:disc}
.article-body ul li{color:var(--text2);margin-bottom:6px;font-size:14px}
.article-body .highlight{background:var(--pri-lt);border-left:3px solid var(--primary);padding:14px 16px;border-radius:0 var(--radius) var(--radius) 0;margin:20px 0;font-size:14px;color:var(--text)}
.article-tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:28px;padding-top:20px;border-top:1px solid var(--border)}
.article-tags span{font-size:13px;color:var(--text2)}
.art-tag{background:var(--bg3);border:1px solid var(--border);color:var(--text2);font-size:12px;padding:3px 10px;border-radius:20px}
.art-tag:hover{background:var(--pri-lt);border-color:var(--primary);color:var(--primary);text-decoration:none}

/* ===== Sidebar ===== */
.sidebar{}
.sidebar .card{padding:20px;margin-bottom:16px}
.sb-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.sb-list{display:flex;flex-direction:column;gap:4px}
.sb-list a{padding:8px 10px;border-radius:var(--radius);font-size:13px;color:var(--text2);display:flex;align-items:center;gap:8px;transition:background .15s}
.sb-list a:hover{background:var(--bg3);color:var(--primary);text-decoration:none}
.sb-list a.current{background:var(--pri-lt);color:var(--primary)}
.sb-recent-item{display:flex;gap:10px;padding:8px 0;border-bottom:1px solid var(--border)}
.sb-recent-item:last-child{border:none}
.sb-recent-item a{font-size:13px;color:var(--text);line-height:1.4;flex:1}
.sb-recent-item a:hover{color:var(--primary)}
.sb-recent-date{font-size:11px;color:var(--text2);flex-shrink:0}
.disclaimer{background:#fff8f0;border:1px solid #fed7aa;border-radius:var(--radius);padding:14px;font-size:12px;color:#92400e;line-height:1.7}

/* ===== Footer ===== */
.ftr{background:var(--text);color:#94a3b8;padding:40px 0 0}
.ftr-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding-bottom:32px}
.ftr h4{font-size:14px;font-weight:600;color:#f1f5f9;margin-bottom:12px}
.ftr p,.ftr li{font-size:13px;line-height:2.2}
.ftr a{color:#94a3b8}
.ftr a:hover{color:#fff}
.ftr-brand{font-size:1.1rem;font-weight:700;color:#fff;margin-bottom:8px;display:block}
.ftr-bottom{border-top:1px solid #334155;padding:16px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}
.ftr-bottom p,.ftr-links{font-size:12px}
.ftr-links{display:flex;gap:16px}
.ftr-links a{color:#64748b}

/* ===== Notice Bar ===== */
.notice-bar{background:#fefce8;border-bottom:1px solid #fde68a;padding:8px 0;font-size:13px;color:#92400e;text-align:center}
.notice-bar a{color:#92400e;font-weight:600}

/* ===== Pill Badges ===== */
.badge{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:600;padding:3px 10px;border-radius:20px}
.badge-hot{background:var(--red-lt);color:var(--red)}
.badge-new{background:var(--grn-lt);color:var(--green)}
.badge-rec{background:#fefce8;color:var(--yellow)}

/* ===== Table ===== */
.table-wrap{overflow-x:auto;margin:20px 0}
table{width:100%;border-collapse:collapse;font-size:14px}
thead tr{background:var(--pri-lt)}
th{padding:10px 14px;text-align:left;font-weight:600;color:var(--primary);font-size:13px}
td{padding:10px 14px;border-bottom:1px solid var(--border);color:var(--text2)}
tr:last-child td{border:none}
tr:hover td{background:var(--bg3)}

/* ===== Pinned Post ===== */
.post-item-pin{background:linear-gradient(to right,#fffbeb,#fff);border-left:3px solid var(--yellow)}
.post-item-pin:hover{background:linear-gradient(to right,#fef9c3,#fffbeb)}
.pin-icon{display:inline-flex;align-items:center;gap:3px;font-size:11px;font-weight:700;color:var(--yellow);background:#fef9c3;border:1px solid #fde68a;padding:1px 7px;border-radius:3px;margin-right:6px;vertical-align:middle}

/* ===== Misc ===== */
.divider{border:none;border-top:1px solid var(--border);margin:32px 0}
.text-center{text-align:center}
.mt-2{margin-top:16px}
.mb-2{margin-bottom:16px}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .ftr-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .hdr-nav,.hdr-right{display:none}
  .menu-btn{display:block}
  .mob-nav.open{display:flex}
  .hero h1{font-size:1.6rem}
  .hero-stats{gap:24px}
  .hs-num{font-size:1.5rem}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
  .page-layout{grid-template-columns:1fr}
  .sidebar{order:-1}
  .ftr-grid{grid-template-columns:1fr;gap:20px}
  .ftr-bottom{flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
  .hero{padding:40px 0}
  .section{padding:32px 0}
}