/* ===== GEO品牌监测 全局样式 ===== */
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;color:#1e293b;background:#f5f7fb;line-height:1.7;font-size:15px}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:root{--blue:#2563eb;--blue2:#1d4ed8;--cyan:#0ea5e9;--dark:#0f172a;--gray:#64748b;--line:#e2e8f0;--bg:#f5f7fb;--green:#16a34a;--red:#dc2626;--amber:#d97706}

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

/* ===== 顶部导航 ===== */
.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;box-shadow:0 1px 3px rgba(15,23,42,.05)}
.nav{display:flex;align-items:center;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--dark)}
.logo-box{width:36px;height:36px;border-radius:9px;background:linear-gradient(135deg,var(--blue),var(--cyan));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:18px}
.brand .logo-box{flex-shrink:0}
.logo-img{width:36px;height:36px;border-radius:9px;object-fit:cover;flex-shrink:0}
.nav-links{display:flex;gap:4px;margin-left:40px;flex:1}
.nav-links a{display:block;padding:8px 16px;border-radius:8px;color:#334155;font-weight:500;transition:.2s}
.nav-links a:hover{color:var(--blue);background:#eff6ff}
.nav-links a.active{color:var(--blue);background:#dbeafe;font-weight:600}
.nav-right{display:flex;gap:10px;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 20px;border-radius:9px;font-weight:600;border:none;cursor:pointer;transition:.2s;font-size:14px}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue2)}
.btn-ghost{background:transparent;color:var(--blue);border:1px solid var(--blue)}
.btn-ghost:hover{background:#eff6ff}
.btn-outline{background:#fff;color:#334155;border:1px solid var(--line)}
.btn-outline:hover{border-color:var(--blue);color:var(--blue)}
.btn-block{width:100%}
.btn-lg{padding:12px 28px;font-size:16px}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.hamburger span{width:24px;height:2px;background:#334155;border-radius:2px}

/* ===== Hero ===== */
.hero{background:linear-gradient(135deg,#0f172a 0%,#1e3a8a 60%,#2563eb 100%);color:#fff;padding:80px 0 70px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(14,165,233,.35),transparent 70%)}
.hero h1{font-size:40px;line-height:1.25;margin-bottom:16px;font-weight:800}
.hero p{font-size:18px;color:#cbd5e1;max-width:640px;margin-bottom:32px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

/* ===== 数据指标条 ===== */
.stats-bar{background:#fff;border-bottom:1px solid var(--line)}
.stats{display:flex;justify-content:space-around;text-align:center;padding:34px 0;flex-wrap:wrap;gap:20px}
.stats .num{font-size:38px;font-weight:800;color:var(--blue)}
.stats .label{color:var(--gray);font-size:14px;margin-top:4px}

/* ===== 章节 ===== */
.section{padding:64px 0}
.section-title{text-align:center;font-size:30px;font-weight:800;margin-bottom:10px;color:var(--dark)}
.section-sub{text-align:center;color:var(--gray);max-width:640px;margin:0 auto 44px}

/* ===== 卡片 ===== */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px;transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(37,99,235,.1);border-color:#bfdbfe}
.card h3{font-size:18px;margin-bottom:10px;color:var(--dark)}
.card p{color:var(--gray);font-size:14px}
.card .icon{width:48px;height:48px;border-radius:12px;background:#eff6ff;color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}

/* ===== 平台/套餐 ===== */
.platform-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border:1.5px solid var(--line);border-radius:99px;font-weight:600;color:#334155;cursor:pointer;transition:.2s;user-select:none}
.platform-pill.on{border-color:var(--blue);background:#eff6ff;color:var(--blue)}
.pkg-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px;display:flex;flex-direction:column;transition:.25s}
.pkg-card:hover{box-shadow:0 12px 36px rgba(37,99,235,.12);transform:translateY(-4px)}
.pkg-card.hot{border-color:var(--blue);box-shadow:0 12px 36px rgba(37,99,235,.14)}
.pkg-name{font-size:20px;font-weight:700;color:var(--dark)}
.pkg-price{font-size:28px;font-weight:800;color:var(--blue);margin:14px 0}
.pkg-price small{font-size:13px;color:var(--gray);font-weight:400}
.pkg-adv{color:var(--gray);font-size:14px;margin-bottom:16px}
.pkg-rights{flex:1;font-size:14px;color:#334155}
.pkg-rights li{padding:6px 0 6px 20px;position:relative}
.pkg-rights li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700}

/* ===== 表单 ===== */
.form-group{margin-bottom:18px}
.form-group label{display:block;margin-bottom:7px;font-weight:600;color:#334155;font-size:14px}
.form-control{width:100%;padding:11px 14px;border:1.5px solid var(--line);border-radius:9px;font-size:14px;transition:.2s;background:#fff}
.form-control:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
textarea.form-control{resize:vertical;min-height:120px}
.form-row{display:flex;gap:10px}
.form-row .form-control{flex:1}
.auth-wrap{max-width:430px;margin:60px auto;background:#fff;border:1px solid var(--line);border-radius:16px;padding:36px}
.auth-wrap h2{font-size:24px;font-weight:700;margin-bottom:6px}
.auth-wrap .sub{color:var(--gray);font-size:14px;margin-bottom:26px}
.tabs{display:flex;gap:8px;margin-bottom:22px;background:#f1f5f9;padding:5px;border-radius:10px}
.tabs .tab{flex:1;text-align:center;padding:9px;border-radius:8px;cursor:pointer;font-weight:600;color:var(--gray);font-size:14px}
.tabs .tab.on{background:#fff;color:var(--blue);box-shadow:0 1px 4px rgba(15,23,42,.08)}

/* ===== 检测结果 ===== */
.result-item{border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden}
.result-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:#f8fafc;border-bottom:1px solid var(--line)}
.result-head .pname{font-weight:700}
.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 12px;border-radius:99px;font-size:12px;font-weight:700}
.badge.ok{background:#dcfce7;color:#15803d}
.badge.no{background:#fee2e2;color:#b91c1c}
.badge.err{background:#fef3c7;color:#b45309}
.result-body{padding:16px 18px}
.result-body .summary{font-size:14px;color:#334155}
.src-list{margin-top:12px}
.src-list li{font-size:13px;padding:5px 0;border-bottom:1px dashed var(--line)}
.src-list li a{color:var(--blue)}
.filter-bar{display:flex;gap:10px;margin:18px 0;flex-wrap:wrap}

/* ===== 文章 ===== */
.article-item{display:flex;gap:20px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:16px;transition:.2s}
.article-item:hover{border-color:#bfdbfe}
.article-item .info{flex:1}
.article-item h3{font-size:18px;margin-bottom:8px}
.article-item h3 a:hover{color:var(--blue)}
.article-item .meta{color:var(--gray);font-size:13px;display:flex;gap:16px;margin-top:10px}

/* 标签页文章列表（仿 sellerhow 无图单列博客流） */
.tag-container{max-width:880px;margin:0 auto;padding:40px 20px}
.tag-page-title{font-size:30px;font-weight:800;color:var(--dark);margin-bottom:6px}
.tag-page-sub{color:var(--gray);font-size:15px;margin-bottom:28px}
.tag-list{display:flex;flex-direction:column}

/* ===== 热门标签云 ===== */
.tag-cloud-box{max-width:880px;margin:0 auto 26px;padding:0 20px}
.tag-cloud-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 24px}
.tag-cloud-title{font-size:15px;font-weight:700;color:var(--dark);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.tag-cloud-title::before{content:"";width:4px;height:16px;background:var(--blue);border-radius:2px;display:inline-block}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center}
.tag-cloud a{color:#475569;font-weight:600;line-height:1;transition:.2s;white-space:nowrap}
.tag-cloud a:hover{color:var(--blue);text-decoration:underline}
.tag-checkbox-group{display:flex;flex-wrap:wrap;gap:10px 14px;padding:12px 14px;background:#f8fafc;border:1px solid var(--line);border-radius:10px}
.tag-check{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#475569;cursor:pointer;user-select:none}
.tag-check input{width:15px;height:15px;accent-color:var(--blue);cursor:pointer}
.tag-post{padding:26px 0;border-bottom:1px solid var(--line)}
.tag-post:last-child{border-bottom:none}
.tag-post-title{font-size:20px;font-weight:700;margin-bottom:8px;line-height:1.4}
.tag-post-title a{color:var(--dark);text-decoration:none}
.tag-post-title a:hover{color:var(--blue)}
.tag-post-date{display:block;font-size:13px;color:var(--gray);margin-bottom:10px}
.tag-post-excerpt{color:var(--gray);font-size:15px;line-height:1.7;margin:0 0 10px}
.tag-post-meta{font-size:13px;color:var(--gray)}
.tag-post-meta a{color:var(--blue);text-decoration:none}

/* 文章详情页标签 */
.article-tags{margin:18px 0 4px;display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.article-tags-label{color:var(--gray);font-size:13px}
.article-tag{display:inline-block;padding:3px 11px;background:#eff6ff;color:var(--blue);border-radius:6px;font-size:13px;text-decoration:none}
.article-tag:hover{background:#dbeafe}
.pagination{display:flex;gap:8px;justify-content:center;margin:30px 0}
.pagination a,.pagination span{padding:8px 14px;border:1px solid var(--line);border-radius:8px;font-size:14px}
.pagination .cur{background:var(--blue);color:#fff;border-color:var(--blue)}

/* ===== 文章详情 ===== */
.breadcrumb{color:var(--gray);font-size:13px;margin:20px 0}
.breadcrumb a{color:var(--gray)}
.breadcrumb a:hover{color:var(--blue)}
.article-detail{background:#fff;border:1px solid var(--line);border-radius:14px;padding:40px;margin-bottom:30px}
.article-detail h1{font-size:28px;line-height:1.4;margin-bottom:16px}
.article-detail .meta{color:var(--gray);font-size:13px;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:22px;display:flex;gap:16px;flex-wrap:wrap}
.article-content{font-size:16px;line-height:1.9;color:#334155}
.article-content p{margin-bottom:16px}
.article-content h2,.article-content h3{margin:22px 0 12px;color:var(--dark)}
.prev-next{display:flex;justify-content:space-between;gap:16px;margin-bottom:30px}
.prev-next a{flex:1;padding:16px;background:#fff;border:1px solid var(--line);border-radius:10px;font-size:14px;color:#334155}
.prev-next a:hover{border-color:var(--blue);color:var(--blue)}

/* ===== 页脚 ===== */
.footer{background:var(--dark);color:#94a3b8;padding:50px 0 30px;margin-top:60px}
.footer .f-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;margin-bottom:30px}
.footer h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer a{display:block;color:#94a3b8;padding:4px 0;font-size:14px}
.footer a:hover{color:#fff}
.footer .copyright{border-top:1px solid #1e293b;padding-top:20px;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ===== 后台 ===== */
.admin-body{background:#f1f5f9}
.admin-layout{display:flex;min-height:100vh}
.admin-side{width:220px;background:var(--dark);color:#cbd5e1;flex-shrink:0;padding:20px 0}
.admin-side .s-brand{padding:0 20px 20px;font-size:18px;font-weight:700;color:#fff;border-bottom:1px solid #1e293b;margin-bottom:16px}
.admin-side a{display:block;padding:11px 20px;color:#cbd5e1;font-size:14px}
.admin-side a:hover,.admin-side a.active{background:#1e293b;color:#fff}
.admin-main{flex:1;padding:24px}
.admin-top{background:#fff;border-radius:12px;padding:16px 20px;margin-bottom:20px;display:flex;justify-content:space-between;align-items:center}
.table{width:100%;background:#fff;border-radius:12px;border-collapse:collapse;overflow:hidden}
.table th,.table td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
.table th{background:#f8fafc;color:#334155;font-weight:600}
.table tr:last-child td{border-bottom:none}
.admin-card{background:#fff;border-radius:12px;padding:24px;margin-bottom:20px}
.stat-card{background:#fff;border-radius:12px;padding:22px;text-align:center}
.stat-card .n{font-size:32px;font-weight:800;color:var(--blue)}

/* ===== 响应式 ===== */
@media(max-width:900px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer .f-grid{grid-template-columns:1fr}
  .admin-layout{flex-direction:column}
  .admin-side{width:100%}
}
@media(max-width:640px){
  .hamburger{display:flex}
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:10px;border-bottom:1px solid var(--line);margin-left:0}
  .nav-links.open{display:flex}
  .nav-right .btn-ghost{display:none}
  .hero h1{font-size:30px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .stats .num{font-size:28px}
  .section{padding:44px 0}
  .article-detail{padding:24px}
  .prev-next{flex-direction:column}
}