/* ============================================================
   米兰体育门户模板 (milan) — 参照 micheledobner.com
   自实现 Bootstrap 风格 CSS，无外部依赖
   配色：主蓝 #0d6efd / 金色 #ffc107 / 深蓝 #0b2a5b / 浅蓝底 #eaf2ff
   ============================================================ */
:root{
    --primary:#0d6efd; --primary-d:#0b5ed7; --primary-dd:#084298;
    --gold:#ffc107; --gold-d:#e0a800;
    --navy:#0b1f3f; --navy-2:#12305c;
    --ink:#1c2430; --muted:#6b7684; --line:#e4ebf5;
    --bg:#ffffff; --bg-soft:#f4f8ff; --bg-soft2:#eaf2ff;
    --radius:16px; --shadow:0 10px 30px rgba(13,45,90,.08);
    --shadow-sm:0 4px 16px rgba(13,45,90,.07);
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px;overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .25s ease}
a:hover{color:var(--primary)}
img{max-width:100%;height:auto;display:block;border:0}
ul{list-style:none}
h1,h2,h3,h4,h5,h6{line-height:1.35;font-weight:800;color:var(--ink)}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 18px}
.text-center{text-align:center}

/* ---------- 通用区块 ---------- */
section{position:relative}
.sec{padding:72px 0}
.sec-head{text-align:center;max-width:760px;margin:0 auto 42px}
.sec-head .eyebrow{display:inline-block;color:var(--primary);font-weight:700;font-size:14px;letter-spacing:1px;margin-bottom:10px}
.sec-head h2{font-size:30px;margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:16px}
.icon{display:inline-flex;align-items:center;justify-content:center;line-height:1}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;border-radius:999px;cursor:pointer;
    padding:12px 26px;font-size:15px;border:2px solid transparent;transition:all .28s ease;white-space:nowrap}
.btn-gold{background:var(--gold);color:#3a2c00;box-shadow:0 8px 22px rgba(255,193,7,.35)}
.btn-gold:hover{background:var(--gold-d);color:#3a2c00;transform:translateY(-2px)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 22px rgba(13,110,253,.28)}
.btn-primary:hover{background:var(--primary-d);color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-outline:hover{background:#fff;color:var(--primary);border-color:#fff}
.btn-glass{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.35);backdrop-filter:blur(6px)}
.btn-glass:hover{background:rgba(255,255,255,.24);color:#fff}
.btn-lg{padding:15px 34px;font-size:17px}
.btn-sm{padding:9px 18px;font-size:14px}

/* ============================================================
   Header — 吸顶导航
   ============================================================ */
.site-header{position:sticky;top:0;z-index:999;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);box-shadow:0 2px 14px rgba(13,45,90,.06)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px;color:var(--navy)}
.brand-logo{width:42px;height:42px;border-radius:11px;object-fit:cover}
.main-nav ul{display:flex;align-items:center;gap:6px}
.main-nav>ul>li{position:relative}
.main-nav>ul>li>a{display:block;padding:10px 16px;font-size:15px;font-weight:600;color:#41506a;border-radius:10px}
.main-nav>ul>li>a:hover{color:var(--primary);background:var(--bg-soft)}
.main-nav>ul>li.active>a{color:var(--primary)}
.main-nav .dropdown{position:absolute;top:100%;left:0;min-width:180px;background:#fff;border:1px solid var(--line);
    border-radius:12px;box-shadow:var(--shadow);padding:8px;opacity:0;visibility:hidden;transform:translateY(10px);
    transition:.25s;z-index:50}
.main-nav li:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.main-nav .dropdown li a{display:block;padding:9px 14px;font-size:14px;color:#41506a;border-radius:8px}
.main-nav .dropdown li a:hover{background:var(--bg-soft);color:var(--primary)}
.header-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;width:44px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;flex-direction:column;gap:5px;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--navy);border-radius:2px;transition:.3s}

/* ============================================================
   Hero
   ============================================================ */
.hero{background:radial-gradient(1200px 500px at 80% -10%,#dceaff 0%,transparent 60%),linear-gradient(160deg,#eef5ff 0%,#f7fbff 55%,#eaf2ff 100%);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:78px 0}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--primary);font-weight:700;
    font-size:13px;padding:7px 15px;border-radius:999px;box-shadow:var(--shadow-sm);margin-bottom:20px}
.hero h1{font-size:42px;line-height:1.22;color:var(--navy);margin-bottom:18px}
.hero h1 strong{color:var(--primary)}
.hero-slogan{color:var(--gold-d);font-weight:800;letter-spacing:1px;margin-bottom:14px}
.hero-desc{color:#53617a;font-size:17px;max-width:520px;margin-bottom:30px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}
.hero-media img{border-radius:26px;box-shadow:0 30px 60px rgba(11,31,63,.22)}
.hero-stats{display:flex;gap:34px;margin-top:36px;flex-wrap:wrap}
.hero-stats .hs-num{font-size:26px;font-weight:800;color:var(--primary)}
.hero-stats .hs-lab{font-size:13px;color:var(--muted)}

/* ============================================================
   公司简介 About
   ============================================================ */
.about{background:#fff}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.about h2{font-size:30px;margin-bottom:20px}
.about-text p{color:#586576;margin-bottom:14px}
.about-text strong{color:var(--primary)}
.about-media img{border-radius:22px;box-shadow:var(--shadow)}
.about-tags{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.about-tags span{background:var(--bg-soft2);color:var(--primary-d);font-weight:600;font-size:14px;padding:8px 16px;border-radius:999px}

/* ============================================================
   为什么选我们 why-us
   ============================================================ */
.why{background:var(--bg-soft)}
.why-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:26px;align-items:stretch}
.why-main{background:linear-gradient(160deg,var(--primary) 0%,var(--primary-dd) 100%);color:#fff;border-radius:22px;padding:36px;
    box-shadow:0 20px 44px rgba(13,110,253,.28);display:flex;flex-direction:column}
.why-main .wm-icon{width:64px;height:64px;border-radius:16px;background:rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;font-size:30px;margin-bottom:20px}
.why-main h3{color:#fff;font-size:24px;margin-bottom:14px}
.why-main p{color:rgba(255,255,255,.9);margin-bottom:18px}
.why-main img{border-radius:16px;margin-top:auto}
.why-items{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.why-item{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow-sm);transition:.3s}
.why-item:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#cfe0ff}
.why-item .wi-icon{width:52px;height:52px;border-radius:14px;background:var(--bg-soft2);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.why-item h4{font-size:18px;margin-bottom:10px}
.why-item p{color:var(--muted);font-size:14.5px}

/* ============================================================
   全球信号热力地图 stats
   ============================================================ */
.stats{background:#fff}
.stats-map-wrapper{position:relative;max-width:920px;margin:0 auto}
.stats-map{position:relative;border-radius:22px;overflow:hidden;box-shadow:var(--shadow);background:#0b1f3f}
.stats-map img{width:100%;display:block;opacity:.96}
.heat-dot{position:absolute;transform:translate(-50%,-50%);z-index:3}
.heat-dot span{position:absolute;left:50%;top:50%;width:14px;height:14px;margin:-7px 0 0 -7px;border-radius:50%;
    background:var(--gold);box-shadow:0 0 0 4px rgba(255,193,7,.35)}
.heat-dot span::after{content:"";position:absolute;inset:-4px;border-radius:50%;background:rgba(255,193,7,.5);animation:pulse 1.8s ease-out infinite}
@keyframes pulse{0%{transform:scale(.6);opacity:.8}100%{transform:scale(2.4);opacity:0}}
.heat-dot label{position:absolute;left:16px;top:-6px;white-space:nowrap;color:#fff;font-size:12px;font-weight:600;
    background:rgba(11,31,63,.72);padding:3px 9px;border-radius:8px}
.heat-dot.d1{left:70%;top:36%}.heat-dot.d2{left:78%;top:62%}.heat-dot.d3{left:46%;top:30%}.heat-dot.d4{left:30%;top:70%}.heat-dot.d5{left:16%;top:44%}
.stats-legend{display:flex;justify-content:center;gap:30px;flex-wrap:wrap;margin-top:30px}
.stats-legend .sl{display:flex;align-items:center;gap:9px;color:#586576;font-size:14px}
.stats-legend .sl i{width:12px;height:12px;border-radius:50%;display:inline-block}

/* ============================================================
   网络化安全体系 security (暗色)
   ============================================================ */
.security{background:radial-gradient(900px 500px at 50% 0%,#173a6b 0%,#0b1f3f 60%,#081831 100%);color:#fff}
.security .sec-head h2{color:#fff}
.security .sec-head p{color:rgba(255,255,255,.7)}
.security .sec-head .eyebrow{color:var(--gold)}
.security-network{position:relative;max-width:760px;margin:20px auto 0;min-height:520px;display:flex;align-items:center;justify-content:center}
.security-network::before{content:"";position:absolute;left:50%;top:50%;width:64%;height:64%;transform:translate(-50%,-50%);
    border:1px dashed rgba(255,255,255,.18);border-radius:50%}
.core-node{width:150px;height:150px;border-radius:50%;background:linear-gradient(160deg,var(--primary),var(--primary-dd));
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;font-weight:800;text-align:center;
    box-shadow:0 0 0 12px rgba(13,110,253,.14),0 20px 50px rgba(0,0,0,.4);z-index:4}
.core-node .cn-ic{font-size:38px}
.node{position:absolute;width:200px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
    border-radius:16px;padding:18px 20px;backdrop-filter:blur(4px);transition:.3s}
.node:hover{background:rgba(255,255,255,.12);transform:translateY(-4px)}
.node .nd-ic{font-size:26px;margin-bottom:8px;color:var(--gold)}
.node .nd-title{font-weight:800;font-size:16px;margin-bottom:6px;color:#fff}
.node small{color:rgba(255,255,255,.66);font-size:13px;line-height:1.6;display:block}
.node.n-tl{top:0;left:0}.node.n-tr{top:0;right:0}.node.n-bl{bottom:0;left:0}.node.n-br{bottom:0;right:0}

/* ============================================================
   FAQ 时间轴
   ============================================================ */
.faq{background:var(--bg-soft)}
.faq-timeline{max-width:840px;margin:0 auto;position:relative;padding-left:8px}
.faq-step{display:flex;gap:22px;padding-bottom:26px;position:relative}
.faq-step:not(:last-child)::before{content:"";position:absolute;left:23px;top:50px;bottom:-4px;width:2px;background:linear-gradient(#bcd4ff,#e6efff)}
.faq-icon{flex:0 0 48px;width:48px;height:48px;border-radius:50%;background:linear-gradient(160deg,var(--primary),var(--primary-dd));
    color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:0 8px 18px rgba(13,110,253,.3);z-index:2}
.faq-content{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 22px;box-shadow:var(--shadow-sm);flex:1;transition:.3s}
.faq-step:hover .faq-content{border-color:#cfe0ff;box-shadow:var(--shadow)}
.faq-content h5{font-size:17px;margin-bottom:8px}
.faq-content p{color:var(--muted);font-size:15px}

/* ============================================================
   App 下载
   ============================================================ */
.appdl{background:linear-gradient(150deg,#0b5ed7 0%,#0b1f3f 100%);color:#fff;overflow:hidden}
.appdl-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.appdl h2{color:#fff;font-size:32px;margin-bottom:16px}
.appdl p{color:rgba(255,255,255,.85);font-size:17px;margin-bottom:26px}
.appdl-meta{display:flex;gap:34px;margin-bottom:30px;flex-wrap:wrap}
.appdl-meta .am-num{font-size:30px;font-weight:800;color:var(--gold)}
.appdl-meta .am-lab{font-size:13px;color:rgba(255,255,255,.7)}
.appdl-btns{display:flex;gap:14px;flex-wrap:wrap}
.appdl-media{display:flex;justify-content:center}
.appdl-media img{border-radius:24px;box-shadow:0 30px 70px rgba(0,0,0,.4);max-width:340px}

/* ============================================================
   Footer — 四栏深色
   ============================================================ */
.site-footer{background:#0a1830;color:#a9b6cc;padding:60px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px;padding-bottom:40px}
.footer-col h6{color:#fff;font-size:16px;margin-bottom:18px;display:flex;align-items:center;gap:8px}
.footer-col .fi{font-size:16px}
.footer-brand .fb-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:14px}
.footer-brand .fb-logo img{width:38px;height:38px;border-radius:10px}
.footer-brand p{line-height:1.8;color:#8b9bb5;margin-bottom:6px}
.flist li{margin-bottom:10px;display:flex;align-items:flex-start;gap:8px}
.flist li span{color:var(--gold)}
.flist a{color:#a9b6cc}
.flist a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;text-align:center;color:#7488a6;font-size:13.5px}
.footer-bottom a{color:#9fb2d0}

/* ---------- 回到顶部 ---------- */
#backTop{position:fixed;right:20px;bottom:26px;width:48px;height:48px;border-radius:50%;border:0;cursor:pointer;
    background:var(--primary);color:#fff;font-size:20px;display:none;align-items:center;justify-content:center;
    box-shadow:0 10px 26px rgba(13,110,253,.4);z-index:900;transition:.3s}
#backTop:hover{background:var(--primary-d);transform:translateY(-3px)}

/* ============================================================
   内页：列表 / 详情 / 单页 / 标签 / 搜索
   ============================================================ */
.page-hero{background:linear-gradient(150deg,#eef5ff,#e2eeff);border-bottom:1px solid var(--line);padding:40px 0}
.page-hero h1{font-size:26px;color:var(--navy)}
.breadcrumb-nav{font-size:14px;color:var(--muted);padding:20px 0}
.breadcrumb-nav a{color:var(--primary)}
.breadcrumb-nav span.sep{margin:0 8px;color:#c2ccdb}

/* 分类导航条 */
.nav-scroll{display:flex;gap:10px;overflow-x:auto;padding:6px 0 18px;scrollbar-width:none}
.nav-scroll::-webkit-scrollbar{display:none}
.nav-scroll a{flex:0 0 auto;padding:9px 18px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#41506a;font-size:14px;font-weight:600}
.nav-scroll a:hover{color:var(--primary);border-color:#cfe0ff}
.nav-scroll a.on{background:var(--primary);color:#fff;border-color:var(--primary)}

/* 卡片网格 list-grid */
.list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:8px 0 30px}
.list-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm);transition:.3s;display:block}
.list-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#cfe0ff}
.list-card .thumb{aspect-ratio:16/9;overflow:hidden;background:#eef3fb}
.list-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.list-card:hover .thumb img{transform:scale(1.06)}
.list-card .info{padding:18px 20px}
.list-card .info h3{font-size:17px;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.9em}
.news-excerpt{font-size:14px;color:var(--muted);line-height:1.6;margin:0 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list-card .meta{display:flex;gap:16px;color:var(--muted);font-size:13px}

/* 横排行 list-row */
.list-rows{display:flex;flex-direction:column;gap:18px;padding:6px 0}
.list-row{display:grid;grid-template-columns:220px 1fr;gap:22px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--shadow-sm);transition:.3s}
.list-row:hover{border-color:#cfe0ff;box-shadow:var(--shadow);transform:translateY(-3px)}
.list-row .thumb{border-radius:12px;overflow:hidden;aspect-ratio:16/10;background:#eef3fb}
.list-row .thumb img{width:100%;height:100%;object-fit:cover}
.list-row .info h4{font-size:19px;margin-bottom:10px}
.list-row .desc{color:var(--muted);font-size:15px;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list-row .meta{display:flex;gap:20px;color:#98a3b3;font-size:13px}

/* 详情 */
.sec-article{padding:34px 0 60px}
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:32px;align-items:start}
.article-main{min-width:0}
.article-head-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 30px;box-shadow:var(--shadow-sm);margin-bottom:22px}
.article-head-card h1{font-size:28px;line-height:1.4;margin-bottom:16px}
.detail-meta{display:flex;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:14px}
.detail-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.detail-tags a{background:var(--bg-soft2);color:var(--primary-d);font-size:13px;padding:5px 13px;border-radius:999px}
.article-body-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 32px;box-shadow:var(--shadow-sm)}
.article-body{font-size:16.5px;color:#33404f;line-height:1.95;word-break:break-word}
.article-body p{margin-bottom:16px}
.article-body img{border-radius:14px;margin:18px auto;box-shadow:var(--shadow-sm)}
.article-body h2,.article-body h3{margin:26px 0 14px;color:var(--navy)}
.article-body ul,.article-body ol{margin:0 0 16px 22px}
.article-body ul{list-style:disc}.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px}
.article-body blockquote{border-left:4px solid var(--primary);background:var(--bg-soft);padding:14px 18px;border-radius:0 12px 12px 0;margin:18px 0;color:#54606f}
.article-body a{color:var(--primary);text-decoration:underline}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.nav-cell{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.nav-cell p{color:var(--muted);font-size:13px;margin-bottom:6px}
.nav-cell a{font-weight:600;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.nav-cell.next{text-align:right}

/* 侧栏 */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:22px}
.widget{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm)}
.widget-title{font-size:16px;font-weight:800;padding:16px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;color:var(--navy)}
.widget-body{padding:16px 20px}
.side-list li{padding:10px 0;border-bottom:1px dashed var(--line);display:flex;gap:12px}
.side-list li:last-child{border-bottom:0}
.side-list .idx{flex:0 0 22px;height:22px;border-radius:6px;background:var(--bg-soft2);color:var(--primary);font-weight:800;font-size:12px;display:flex;align-items:center;justify-content:center}
.side-list a{font-size:14.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 相关推荐 */
.related-section{margin-top:26px}
.related-section h3{font-size:20px;margin-bottom:18px}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.related-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.3s}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.related-card .thumb{aspect-ratio:16/10;overflow:hidden;background:#eef3fb}
.related-card .thumb img{width:100%;height:100%;object-fit:cover}
.related-card h4{font-size:15px;padding:12px 14px 4px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.8em}
.related-card .date{display:block;padding:0 14px 14px;color:#98a3b3;font-size:12.5px}

/* 单页 */
.page-single{background:#fff;border:1px solid var(--line);border-radius:18px;padding:34px 36px;box-shadow:var(--shadow-sm);margin:6px 0 40px}
.page-single-head{margin-bottom:20px}
.page-single-head h1{font-size:26px}
.page-single-line{display:block;width:56px;height:4px;border-radius:4px;background:linear-gradient(90deg,var(--primary),var(--gold));margin-top:12px}

/* 标签云 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px}
.tag-cloud a{background:var(--bg-soft2);color:var(--primary-d);padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;transition:.25s}
.tag-cloud a:hover{background:var(--primary);color:#fff}
.tag-detail-header{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 26px;box-shadow:var(--shadow-sm);margin-bottom:22px}
.tag-detail-header .tag-icon{width:56px;height:56px;border-radius:14px;background:linear-gradient(160deg,var(--primary),var(--primary-dd));color:#fff;font-size:26px;font-weight:800;display:flex;align-items:center;justify-content:center}
.tag-detail-header h2{font-size:22px}
.tag-detail-header p{color:var(--muted);font-size:14px}

/* 搜索 */
.search-section{background:linear-gradient(150deg,#eef5ff,#e2eeff);border-radius:18px;padding:32px;text-align:center;margin:24px 0}
.search-section h2{font-size:22px;margin-bottom:18px}
.search-form{display:flex;gap:10px;max-width:560px;margin:0 auto}
.search-form input[type=text]{flex:1;padding:13px 18px;border:1px solid var(--line);border-radius:999px;font-size:15px;outline:none}
.search-form input[type=text]:focus{border-color:var(--primary)}
.search-form input[type=submit]{padding:13px 30px;border:0;border-radius:999px;background:var(--primary);color:#fff;font-weight:700;cursor:pointer}
.search-form input[type=submit]:hover{background:var(--primary-d)}

/* 空态 */
.empty-tip{text-align:center;padding:60px 0;color:var(--muted)}
.empty-emoji{font-size:56px;margin-bottom:12px}

/* 分页 */
.pagination-wrap{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;padding:30px 0}
.pagination-wrap a,.pagination-wrap span{min-width:42px;height:42px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:12px;background:#fff;color:#41506a;font-weight:600;font-size:14px}
.pagination-wrap a:hover{border-color:var(--primary);color:var(--primary)}
.pagination-wrap .page-active,.pagination-wrap .active,.pagination-wrap span.current{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:992px){
    .hero-grid,.about-grid,.why-grid,.appdl-grid{grid-template-columns:1fr;gap:32px}
    .hero h1{font-size:34px}
    .list-grid{grid-template-columns:repeat(2,1fr)}
    .article-layout{grid-template-columns:1fr}
    .article-side{position:static}
    .related-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr}
    .why-items{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
    .sec{padding:52px 0}
    .sec-head h2{font-size:24px}
    .nav-toggle{display:flex}
    .main-nav{position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
        box-shadow:var(--shadow);max-height:0;overflow:hidden;transition:max-height .35s ease}
    .main-nav.open{max-height:70vh;overflow:auto}
    .main-nav>ul{flex-direction:column;align-items:stretch;gap:0;padding:8px 0}
    .main-nav>ul>li>a{padding:14px 22px;border-radius:0}
    .main-nav .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;border-radius:0;display:none;background:var(--bg-soft)}
    .main-nav li:hover .dropdown{display:block}
    .hero{padding-top:10px}.hero-grid{padding:44px 0}
    .list-row{grid-template-columns:1fr}
    .list-row .thumb{aspect-ratio:16/9}
    .security-network{min-height:0;flex-direction:column;gap:16px}
    .security-network::before{display:none}
    .node{position:static;width:100%}
    .core-node{margin-bottom:6px}
    .stats-map img{opacity:.9}
}
@media (max-width:560px){
    .list-grid{grid-template-columns:1fr}
    .why-items{grid-template-columns:1fr}
    .related-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .article-nav{grid-template-columns:1fr}
    .hero h1{font-size:28px}
    .heat-dot label{display:none}
}