/* ===== 网易云资讯站 全站样式 ===== */
:root{
  --brand:#c20c0c; --brand-dark:#9f0a0a; --brand-light:#e33b3b;
  --ink:#1f1f1f; --sub:#666; --muted:#999;
  --bg:#f7f7f9; --card:#fff; --line:#ececf1;
  --dark:#14141a; --dark2:#1d1d25;
  --radius:14px; --shadow:0 6px 24px rgba(0,0,0,.07);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{list-style:none}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:8px 16px;z-index:999}
.skip:focus{left:0}

/* ===== 顶部导航 ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;height:66px;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}
.brand img{width:34px;height:34px;border-radius:8px}
.brand span{color:var(--ink)}
.brand em{font-style:normal;color:var(--brand)}
.nav-links{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.nav-links a{padding:8px 14px;border-radius:8px;font-size:15px;color:var(--sub);transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--brand);background:#fbeaea}
.nav-cta{background:var(--brand);color:#fff;padding:9px 18px;border-radius:22px;font-weight:600;font-size:14px;transition:.2s}
.nav-cta:hover{background:var(--brand-dark)}
.menu-toggle{display:none;margin-left:auto;font-size:26px;cursor:pointer;color:var(--ink)}
@media(max-width:860px){.nav-links{display:none}.menu-toggle{display:block}}

/* ===== 通用区块 ===== */
.section{padding:64px 0}
.section.alt{background:var(--card)}
.section.dark{background:var(--dark);color:#eee}
.sec-head{text-align:center;max-width:720px;margin:0 auto 40px}
.sec-tag{display:inline-block;color:var(--brand);font-weight:600;font-size:13px;letter-spacing:1px;margin-bottom:8px}
.sec-head h2{font-size:30px;line-height:1.3;margin-bottom:12px}
.sec-head p{color:var(--sub);font-size:16px}

/* ===== 按钮（全部为 a 标签）===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:26px;font-size:16px;font-weight:600;transition:.2s;cursor:pointer}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(194,12,12,.28)}
.btn-ghost{background:#fff;color:var(--brand);border:1.5px solid var(--brand)}
.btn-ghost:hover{background:#fbeaea}
.btn-dark{background:var(--dark);color:#fff}
.btn-sm{padding:9px 20px;font-size:14px;border-radius:20px}

/* ===== Hero ===== */
.hero{position:relative;background:linear-gradient(135deg,#fff 0%,#fdeeef 100%);overflow:hidden;padding:70px 0 80px}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(194,12,12,.12),transparent 70%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:#fbeaea;color:var(--brand);font-size:13px;font-weight:600;padding:7px 14px;border-radius:20px;margin-bottom:18px}
.hero h1{font-size:42px;line-height:1.25;margin-bottom:18px}
.hero h1 .hl{color:var(--brand)}
.hero .lead{font-size:18px;color:var(--sub);margin-bottom:28px;max-width:520px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:36px;margin-top:34px;flex-wrap:wrap}
.hero-stats .num{font-size:26px;font-weight:800;color:var(--ink)}
.hero-stats .lbl{font-size:13px;color:var(--sub)}

/* ===== 客户端模拟器 ===== */
.simulator{background:var(--dark);border-radius:20px;padding:18px;box-shadow:0 24px 60px rgba(0,0,0,.25);border:1px solid #2a2a33}
.sim-bar{display:flex;align-items:center;gap:8px;padding-bottom:14px}
.sim-bar i{width:11px;height:11px;border-radius:50%;display:inline-block}
.sim-bar i:nth-child(1){background:#ff5f57}.sim-bar i:nth-child(2){background:#febc2e}.sim-bar i:nth-child(3){background:#28c840}
.sim-bar .sim-title{margin-left:auto;color:#888;font-size:12px}
.sim-body{display:grid;grid-template-columns:150px 1fr;gap:16px}
.sim-cover{width:150px;height:150px;border-radius:14px;background:linear-gradient(145deg,#c20c0c,#7a0707);display:flex;align-items:center;justify-content:center;color:#fff;font-size:52px;box-shadow:inset 0 0 40px rgba(0,0,0,.25)}
.sim-list{display:flex;flex-direction:column;gap:10px}
.sim-song{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;background:#1d1d25}
.sim-song.active{background:#2a2230;border:1px solid rgba(194,12,12,.5)}
.sim-song .idx{width:22px;height:22px;border-radius:50%;background:#333;color:#ccc;font-size:11px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sim-song.active .idx{background:var(--brand);color:#fff}
.sim-song .meta{flex:1;min-width:0}
.sim-song .t{color:#eee;font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sim-song .a{color:#888;font-size:11px}
.sim-song .ic{color:#bbb;font-size:14px}
.sim-song.active .ic{color:var(--brand-light)}
.sim-controls{grid-column:1/-1;display:flex;align-items:center;gap:16px;padding-top:14px;color:#ccc}
.sim-controls .btns{display:flex;gap:14px;font-size:20px;align-items:center}
.sim-controls .btns .play{width:44px;height:44px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px}
.sim-progress{flex:1}
.sim-progress .bar{height:5px;background:#333;border-radius:3px;position:relative}
.sim-progress .bar::after{content:"";position:absolute;left:0;top:0;height:100%;width:56%;background:var(--brand);border-radius:3px}
.sim-progress .time{display:flex;justify-content:space-between;font-size:10px;color:#777;margin-top:5px}

/* ===== 公告区 ===== */
.notice{background:linear-gradient(90deg,#fff7e6,#fff);border:1px solid #f5e0b5;border-radius:var(--radius);padding:16px 20px;display:flex;align-items:center;gap:14px;margin-top:-30px;position:relative;z-index:5;box-shadow:var(--shadow)}
.notice .tag{background:#ff9f0a;color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:6px;white-space:nowrap}
.notice p{font-size:14px;color:#7a5b1e}
.notice a{color:var(--brand);font-weight:600}

/* ===== 卡片网格 ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
@media(max-width:860px){.grid-3,.grid-2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#f0d0d0}
.card .icon{width:56px;height:56px;border-radius:14px;background:#fbeaea;color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--sub);font-size:14.5px}

/* ===== 对比表 ===== */
.compare-table{width:100%;border-collapse:collapse;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.compare-table th,.compare-table td{padding:16px 18px;text-align:center;font-size:14.5px;border-bottom:1px solid var(--line)}
.compare-table thead th{background:var(--dark);color:#fff;font-weight:600}
.compare-table thead th:first-child{text-align:left}
.compare-table tbody th{text-align:left;color:var(--ink);font-weight:600;background:#fafafa}
.compare-table .yes{color:#16a34a;font-weight:700}
.compare-table .no{color:#bbb}
.compare-table .hl-col{background:#fff7f7}
.compare-table .hl-col strong{color:var(--brand)}

/* ===== 新闻 Tabs（纯 a 锚点）===== */
.tabs{display:flex;gap:10px;justify-content:center;margin-bottom:30px;flex-wrap:wrap}
.tabs a{padding:10px 22px;border-radius:22px;background:var(--card);border:1px solid var(--line);color:var(--sub);font-size:14.5px;font-weight:600;transition:.2s}
.tabs a:hover,.tabs a.on{background:var(--brand);color:#fff;border-color:var(--brand)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:860px){.news-grid{grid-template-columns:1fr}}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.25s}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.news-card .thumb{height:170px;overflow:hidden;background:#f0f0f3}
.news-card .thumb img{width:100%;height:100%;object-fit:cover}
.news-card .body{padding:18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card .cat{color:var(--brand);font-size:12px;font-weight:700}
.news-card h3{font-size:16.5px;line-height:1.45}
.news-card h3 a:hover{color:var(--brand)}
.news-card .date{color:var(--muted);font-size:12.5px;margin-top:auto}

/* ===== 用户评论 ===== */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:860px){.reviews{grid-template-columns:1fr}}
.review{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.review .stars{color:#f5a623;letter-spacing:2px;margin-bottom:12px}
.review .txt{color:var(--sub);font-size:14.5px;margin-bottom:16px}
.review .user{display:flex;align-items:center;gap:12px}
.review .avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#c20c0c,#7a0707);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px}
.review .nm{font-weight:600;font-size:14px}
.review .role{font-size:12px;color:var(--muted)}

/* ===== 下载区 ===== */
.dl-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
@media(max-width:900px){.dl-grid{grid-template-columns:repeat(2,1fr)}}
.dl-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 18px;text-align:center;transition:.25s;display:flex;flex-direction:column;gap:10px;align-items:center}
.dl-item:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#f0d0d0}
.dl-item .ic{font-size:40px;margin-bottom:6px}
.dl-item .nm{font-weight:700;font-size:16px}
.dl-item .ver{font-size:12px;color:var(--muted)}

/* ===== 信任背书 ===== */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:860px){.trust-grid{grid-template-columns:repeat(2,1fr)}}
.trust-item{text-align:center;padding:20px}
.trust-item .num{font-size:30px;font-weight:800;color:var(--brand)}
.trust-item .lbl{font-size:14px;color:var(--sub)}

/* ===== 应用场景 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
@media(max-width:900px){.scene-grid{grid-template-columns:repeat(2,1fr)}}
.scene{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-align:center;transition:.25s}
.scene:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.scene .ic{font-size:34px;margin-bottom:10px}
.scene .nm{font-weight:700;font-size:15px;margin-bottom:6px}
.scene p{font-size:12.5px;color:var(--sub)}

/* ===== FAQ ===== */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.faq-item summary{padding:20px 24px;font-weight:700;font-size:16.5px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;color:var(--brand);transition:.2s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 24px 22px;color:var(--sub)}
.faq-steps{margin-top:12px;display:flex;flex-direction:column;gap:10px}
.faq-steps li{display:flex;gap:12px;font-size:14.5px}
.faq-steps .step-n{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:#fbeaea;color:var(--brand);font-weight:700;font-size:12px;display:flex;align-items:center;justify-content:center;margin-top:2px}

/* ===== CTA / 页脚 ===== */
.cta{background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;text-align:center;padding:64px 20px;border-radius:20px}
.cta h2{font-size:32px;margin-bottom:14px}
.cta p{opacity:.92;margin-bottom:28px;font-size:16px}
.cta .btn-ghost{background:transparent;color:#fff;border-color:#fff}
.cta .btn-ghost:hover{background:rgba(255,255,255,.15)}

.site-footer{background:var(--dark);color:#aaa;padding:56px 0 24px;margin-top:64px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:40px}
@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col a{display:block;font-size:13.5px;color:#aaa;padding:5px 0;transition:.2s}
.footer-col a:hover{color:#fff}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand img{width:34px;height:34px;border-radius:8px}
.footer-brand span{color:#fff;font-weight:700;font-size:17px}
.footer-bottom{border-top:1px solid #2a2a33;padding-top:22px;font-size:13px;color:#777;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between}
.footer-bottom a{color:#999}

/* ===== 面包屑 ===== */
.crumbs{background:var(--bg);border-bottom:1px solid var(--line);padding:16px 0;font-size:13.5px;color:var(--sub)}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:#ccc}
.crumbs .here{color:var(--ink);font-weight:600}

/* ===== 内页通用 ===== */
.page-head{background:linear-gradient(135deg,#fff,#fdeeef);padding:52px 0;text-align:center}
.page-head h1{font-size:36px;margin-bottom:12px}
.page-head p{color:var(--sub);max-width:680px;margin:0 auto;font-size:16px}

/* ===== 文章详情 ===== */
.article-layout{display:grid;grid-template-columns:1fr 300px;gap:40px;align-items:start}
@media(max-width:900px){.article-layout{grid-template-columns:1fr}}
.article-main{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:40px}
.article-main h1{font-size:30px;line-height:1.4;margin-bottom:16px}
.article-meta{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--muted);margin-bottom:22px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.article-meta .cat{color:var(--brand);font-weight:600}
.article-cover{border-radius:12px;overflow:hidden;margin-bottom:28px}
.article-body{font-size:16px;color:#333;line-height:1.9}
.article-body p{margin-bottom:20px}
.article-body h2{font-size:22px;margin:32px 0 16px;padding-left:14px;border-left:4px solid var(--brand)}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:12.5px;color:var(--muted);text-align:center;margin-top:8px}
.article-body blockquote{border-left:4px solid #f0d0d0;background:#fdf5f5;padding:14px 20px;margin:20px 0;color:#7a5b1e;font-size:15px;border-radius:0 8px 8px 0}
.article-nav{display:flex;justify-content:space-between;gap:14px;margin-top:36px;padding-top:22px;border-top:1px solid var(--line)}
.article-nav a{font-size:14px;color:var(--sub);transition:.2s}
.article-nav a:hover{color:var(--brand)}
.article-nav .disabled{color:#ccc;cursor:default}

/* 评论 */
.comments{margin-top:40px}
.comments h3{font-size:20px;margin-bottom:20px}
.comment{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}
.comment .avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#c20c0c,#7a0707);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
.comment .c-head{display:flex;gap:10px;align-items:baseline;margin-bottom:4px}
.comment .nm{font-weight:600;font-size:14px}
.comment .dt{font-size:12px;color:var(--muted)}
.comment p{font-size:14.5px;color:var(--sub)}

/* 侧栏 */
.sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:84px}
.side-box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.side-box h4{font-size:16px;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--brand);display:inline-block}
.side-box ul li{margin-bottom:12px}
.side-box ul li a{font-size:14px;color:var(--sub);line-height:1.5;display:block;transition:.2s}
.side-box ul li a:hover{color:var(--brand)}
.side-box .tag-list{display:flex;flex-wrap:wrap;gap:8px}
.side-box .tag-list a{font-size:12.5px;background:#f5f5f7;color:var(--sub);padding:5px 12px;border-radius:16px}
.side-box .tag-list a:hover{background:var(--brand);color:#fff}

/* 相关阅读 */
.related{margin-top:44px}
.related h3{font-size:20px;margin-bottom:20px}
.related .news-grid{grid-template-columns:repeat(3,1fr)}
@media(max-width:860px){.related .news-grid{grid-template-columns:1fr}}

/* ===== 页面结构数据辅助 ===== */
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}