/* ============================================================
   网易云音乐资讯官网 全局样式
   品牌主色: #C20C0C (网易云红)
   ============================================================ */
:root{
  --red:#C20C0C; --red-dark:#9E0A0A; --red-light:#E8442E;
  --ink:#141414; --ink-2:#2b2b2b; --ink-3:#4a4a4a;
  --gray:#f5f5f7; --gray-2:#ececef; --line:#e5e5e8;
  --white:#ffffff; --gold:#e6a23c;
  --radius:16px; --radius-sm:10px;
  --shadow:0 8px 30px rgba(0,0,0,.06);
  --shadow-lg:0 16px 50px rgba(0,0,0,.10);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);line-height:1.7;background:var(--white);font-size:16px}
img{max-width:100%;display:block}
a{color:var(--red);text-decoration:none;transition:color .2s,opacity .2s,transform .2s}
a:hover{color:var(--red-dark)}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.3;font-weight:700;color:var(--ink)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section--gray{background:var(--gray)}
.section--dark{background:linear-gradient(160deg,#1a1a1a 0%,#0d0d0d 100%);color:#fff}
.section--dark h2,.section--dark h3{color:#fff}
.section-title{font-size:32px;text-align:center;margin-bottom:12px}
.section-sub{text-align:center;color:var(--ink-3);max-width:720px;margin:0 auto 44px;font-size:16px}
.section-head{text-align:center;margin-bottom:44px}
.kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--red);text-transform:uppercase;margin-bottom:8px}

/* ---- 顶部导航 ---- */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.site-header .container{display:flex;align-items:center;height:68px;gap:28px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{width:34px;height:34px;border-radius:8px}
.brand .brand-name{font-size:20px;font-weight:800;color:var(--ink)}
.brand .brand-name b{color:var(--red)}
.main-nav{display:flex;align-items:center;gap:4px;flex:1}
.main-nav a{display:block;padding:8px 14px;font-size:15px;font-weight:600;color:var(--ink-2);border-radius:8px}
.main-nav a:hover,.main-nav a.active{color:var(--red);background:#fdeeee}
.header-cta{margin-left:auto;flex-shrink:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border-radius:50px;font-weight:700;font-size:15px;cursor:pointer;line-height:1.2}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-dark);color:#fff;transform:translateY(-1px)}
.btn-outline{border:1.5px solid var(--ink);color:var(--ink)}
.btn-outline:hover{border-color:var(--red);color:var(--red)}
.btn-white{background:#fff;color:var(--red)}
.btn-white:hover{background:#ffeaea;color:var(--red-dark)}
.btn-lg{padding:15px 34px;font-size:17px}
.btn-sm{padding:8px 16px;font-size:13px}

/* ---- Hero ---- */
.hero{position:relative;overflow:hidden;background:radial-gradient(1200px 600px at 80% -10%,rgba(194,12,12,.22),transparent 55%),linear-gradient(160deg,#1c1c1c 0%,#0a0a0a 100%);color:#fff;padding:84px 0 96px}
.hero .container{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(194,12,12,.18);border:1px solid rgba(194,12,12,.4);color:#ffb3a7;padding:7px 16px;border-radius:50px;font-size:13px;font-weight:600;margin-bottom:22px}
.hero h1{font-size:46px;line-height:1.2;color:#fff;margin-bottom:18px}
.hero h1 .hl{color:var(--red-light)}
.hero p.lead{font-size:18px;color:#d8d8dc;max-width:520px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:36px;margin-top:40px}
.hero-stats .stat b{font-size:26px;color:#fff;display:block}
.hero-stats .stat span{font-size:13px;color:#9a9aa0}

/* ---- 客户端模拟器 ---- */
.player-mock{background:linear-gradient(180deg,#2b2b2f,#161618);border:1px solid #333;border-radius:22px;box-shadow:0 30px 70px rgba(0,0,0,.5);overflow:hidden;position:relative}
.player-mock .mock-bar{display:flex;align-items:center;gap:6px;padding:12px 16px;background:#1e1e22;border-bottom:1px solid #2c2c30}
.player-mock .mock-dot{width:11px;height:11px;border-radius:50%}
.player-mock .mock-title{margin-left:auto;font-size:12px;color:#888}
.player-cover{position:relative;padding:24px}
.player-cover .album{width:100%;aspect-ratio:1;border-radius:16px;background:linear-gradient(135deg,#c20c0c,#e8442e 60%,#f0836a);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.player-cover .album::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 20%,rgba(255,255,255,.28),transparent 50%)}
.player-cover .album .disc{width:58%;height:58%;border-radius:50%;background:conic-gradient(from 0deg,#111,#333,#111,#333,#111);position:relative;box-shadow:0 0 0 6px rgba(0,0,0,.5)}
.player-cover .album .disc::after{content:"";position:absolute;inset:28%;border-radius:50%;background:var(--red);box-shadow:0 0 0 4px #fff}
.player-track{margin:0 24px 20px;color:#fff}
.player-track .track-name{font-size:17px;font-weight:700}
.player-track .track-artist{font-size:13px;color:#9a9aa0;margin-top:2px}
.player-progress{margin-top:16px}
.player-progress .bar{height:5px;background:#3a3a40;border-radius:5px;position:relative}
.player-progress .bar i{position:absolute;left:0;top:0;height:100%;width:62%;background:var(--red);border-radius:5px}
.player-progress .bar i::after{content:"";position:absolute;right:-6px;top:50%;transform:translateY(-50%);width:12px;height:12px;border-radius:50%;background:#fff}
.player-time{display:flex;justify-content:space-between;font-size:11px;color:#888;margin-top:6px}
.player-controls{display:flex;align-items:center;justify-content:center;gap:22px;padding:6px 0 22px;color:#ccc}
.player-controls .ctl{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#2b2b30;font-size:14px;color:#ddd}
.player-controls .ctl.play{width:58px;height:58px;background:var(--red);color:#fff;font-size:16px}
.player-playlist{margin:0 24px 22px;border-top:1px solid #2c2c30;padding-top:14px}
.player-playlist .pl{display:flex;align-items:center;gap:12px;padding:8px 10px;border-radius:10px;font-size:13px;color:#cfcfd3}
.player-playlist .pl.now{background:#2b2b30;color:#fff}
.player-playlist .pl .no{color:#888;width:14px}

/* ---- 公告区 ---- */
.notice-strip{background:linear-gradient(90deg,#fdeeee,#fff7f7);border:1px solid #f5c6c6;border-radius:var(--radius);padding:18px 22px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.notice-strip .tag{background:var(--red);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:50px;flex-shrink:0}
.notice-strip p{flex:1;font-size:15px;color:var(--ink-2)}
.notice-strip a{font-weight:700}

/* ---- 功能卡片 ---- */
.grid{display:grid;gap:24px}
.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:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .2s,box-shadow .2s;box-shadow:var(--shadow)}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.card .icon{width:54px;height:54px;border-radius:14px;background:#fdeeee;display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--ink-3);font-size:15px}

/* ---- 对比表 ---- */
.compare-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.compare-table th,.compare-table td{padding:16px 18px;text-align:center;border-bottom:1px solid var(--line);font-size:15px}
.compare-table th{background:#1c1c1c;color:#fff;font-weight:700}
.compare-table th:first-child,.compare-table td:first-child{text-align:left;font-weight:600}
.compare-table .win{color:var(--red);font-weight:700}
.compare-table .yes{color:#2e9e4f;font-weight:700}
.compare-table tr:hover td{background:#fdf4f4}

/* ---- Tabs ---- */
.tabs{display:flex;gap:10px;justify-content:center;margin-bottom:32px;flex-wrap:wrap}
.tab-pill{padding:10px 22px;border-radius:50px;border:1.5px solid var(--line);background:#fff;font-weight:600;font-size:15px;color:var(--ink-2)}
.tab-pill.active,.tab-pill:hover{background:var(--red);color:#fff;border-color:var(--red)}
.tab-content{display:none}
.tab-content.active{display:block}

/* ---- 新闻卡片 ---- */
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.news-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--gray-2)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover}
.news-card .body{padding:20px}
.news-card .meta{display:flex;gap:12px;font-size:12px;color:var(--ink-3);margin-bottom:8px}
.news-card .cat{color:var(--red);font-weight:700}
.news-card h3{font-size:17px;margin-bottom:8px;line-height:1.45}
.news-card h3 a{color:var(--ink)}
.news-card h3 a:hover{color:var(--red)}
.news-card p{font-size:14px;color:var(--ink-3)}

/* ---- 评论 ---- */
.review-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.review-card .stars{color:var(--gold);letter-spacing:2px;margin-bottom:12px}
.review-card blockquote{font-size:15.5px;color:var(--ink-2);margin-bottom:16px;line-height:1.8}
.review-card .reviewer{display:flex;align-items:center;gap:12px}
.review-card .avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#e8442e,#c20c0c);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.review-card .reviewer b{display:block;font-size:14px}
.review-card .reviewer span{font-size:12px;color:var(--ink-3)}

/* ---- 下载 ---- */
.download-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.download-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 18px;text-align:center;box-shadow:var(--shadow);transition:transform .2s}
.download-item:hover{transform:translateY(-5px)}
.download-item .plat{width:56px;height:56px;border-radius:16px;background:#fdeeee;margin:0 auto 14px;display:flex;align-items:center;justify-content:center;font-size:26px}
.download-item h4{font-size:16px;margin-bottom:14px}
.download-item .btn{width:100%}

/* ---- 信任背书 ---- */
.trust-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.trust-item{text-align:center;padding:26px;border-radius:var(--radius);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1)}
.trust-item .big{font-size:30px;font-weight:800;color:var(--red-light);display:block}
.trust-item span{font-size:14px;color:#b9b9bf}

/* ---- FAQ ---- */
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:#fff;margin-bottom:16px;overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 24px;font-weight:700;font-size:17px;display:flex;justify-content:space-between;align-items:center}
.faq-item summary::after{content:"+";font-size:24px;color:var(--red);font-weight:400}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-body{padding:0 24px 22px;color:var(--ink-3);font-size:15px}
.faq-steps{margin:10px 0;padding-left:2px}
.faq-steps li{position:relative;padding-left:40px;margin-bottom:14px;line-height:1.8}
.faq-steps li .step-no{position:absolute;left:0;top:2px;width:28px;height:28px;border-radius:50%;background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}

/* ---- 面包屑 ---- */
.breadcrumb{font-size:13px;color:var(--ink-3);padding:18px 0;border-bottom:1px solid var(--line);margin-bottom:36px}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb li+li::before{content:"›";margin-right:8px;color:#bbb}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--red)}
.breadcrumb .cur{color:var(--red);font-weight:600}

/* ---- 页头横幅 ---- */
.page-hero{background:linear-gradient(160deg,#1c1c1c,#0a0a0a);color:#fff;padding:64px 0}
.page-hero h1{color:#fff;font-size:38px;margin-bottom:12px}
.page-hero p{color:#c8c8cd;max-width:680px;font-size:17px}

/* ---- 页脚 ---- */
.site-footer{background:#0d0d0d;color:#b9b9bf;padding:64px 0 0}
.site-footer .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid #262626}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px}
.site-footer a{color:#b9b9bf;font-size:14px;display:block;padding:5px 0}
.site-footer a:hover{color:var(--red-light)}
.site-footer .brand{color:#fff;font-size:20px;font-weight:800;margin-bottom:12px}
.site-footer .brand b{color:var(--red)}
.site-footer .foot-desc{font-size:14px;max-width:300px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:20px 0;font-size:13px;flex-wrap:wrap;gap:10px}
.footer-bottom a{color:#b9b9bf}

/* ---- 文章详情 ---- */
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:40px}
.article-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow)}
.article-body h1{font-size:30px;margin-bottom:16px;line-height:1.4}
.article-meta{display:flex;gap:16px;font-size:13px;color:var(--ink-3);border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:24px;flex-wrap:wrap}
.article-body h2{font-size:22px;margin:32px 0 14px;padding-left:14px;border-left:4px solid var(--red)}
.article-body p{margin-bottom:18px;font-size:16.5px;color:var(--ink-2);line-height:1.9}
.article-body figure{margin:24px 0}
.article-body figure img{border-radius:var(--radius);width:100%}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px}
.article-nav{display:flex;justify-content:space-between;gap:16px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line);flex-wrap:wrap}
.sidebar-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);margin-bottom:24px}
.sidebar-card h3{font-size:17px;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--red)}
.sidebar-card ul li{padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px}
.sidebar-card ul li:last-child{border-bottom:none}
.sidebar-card ul li a{color:var(--ink-2)}
.sidebar-card ul li a:hover{color:var(--red)}
.sidebar-card .tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.sidebar-card .tag-cloud a{background:var(--gray);border-radius:50px;padding:6px 14px;font-size:13px;color:var(--ink-2)}
.sidebar-card .tag-cloud a:hover{background:var(--red);color:#fff}

/* ---- 评论列表 ---- */
.comment-list{margin-top:32px;border-top:1px solid var(--line);padding-top:24px}
.comment-list h3{font-size:19px;margin-bottom:18px}
.comment{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line)}
.comment .avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#e8442e,#c20c0c);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
.comment .c-body{flex:1}
.comment .c-head{display:flex;justify-content:space-between;align-items:center;font-size:13px;margin-bottom:6px}
.comment .c-head b{font-size:14px;color:var(--ink)}
.comment .c-head span{color:var(--ink-3)}
.comment .c-text{font-size:14.5px;color:var(--ink-2);line-height:1.75}

/* ---- CTA ---- */
.cta-band{background:linear-gradient(135deg,var(--red),var(--red-dark));color:#fff;border-radius:22px;padding:56px 48px;text-align:center;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(255,255,255,.18),transparent 50%)}
.cta-band h2{color:#fff;font-size:32px;margin-bottom:12px;position:relative}
.cta-band p{color:#ffd9d9;margin-bottom:26px;position:relative;font-size:16px}
.cta-band .btn{position:relative}

/* ---- 响应式 ---- */
@media(max-width:992px){
  .hero .container{grid-template-columns:1fr}
  .hero h1{font-size:36px}
  .grid-3,.grid-4,.download-grid,.trust-strip{grid-template-columns:repeat(2,1fr)}
  .article-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .main-nav{display:none}
}
@media(max-width:640px){
  .grid-2,.grid-3,.grid-4,.download-grid,.trust-strip{grid-template-columns:1fr}
  .section{padding:52px 0}
  .article-body{padding:24px}
  .compare-table{font-size:12px}
  .compare-table th,.compare-table td{padding:10px 8px}
}