:root{
  --nav-dark:#171b29;--music-purple:#6953a6;--night-blue:#315f9f;--vinyl-red:#c94e5c;
  --city-green:#358171;--accent-gold:#d1a746;--bg:#f3f3f5;--card:#ffffff;
  --text:#292d35;--text-secondary:#70737c;--border:#dedfe4;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;background:var(--bg);color:var(--text);line-height:1.8;font-size:15px;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;}
.content-narrow{max-width:820px;}
ul{list-style:none;}
h1,h2,h3,h4{line-height:1.35;}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:var(--nav-dark);box-shadow:0 2px 10px rgba(0,0,0,.15);}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:64px;}
.nav-menu{display:flex;gap:20px;flex-wrap:wrap;}
.nav-menu a{color:#dedfe4;font-size:14px;padding:6px 2px;border-bottom:2px solid transparent;transition:.2s;}
.nav-menu a:hover,.nav-menu a.active{color:#fff;border-color:var(--accent-gold);}
.nav-actions{display:flex;align-items:center;gap:14px;}
.nav-cta{background:var(--vinyl-red);color:#fff;padding:9px 18px;border-radius:20px;font-size:14px;font-weight:600;}
.nav-toggle{display:none;flex-direction:column;gap:4px;background:none;border:0;cursor:pointer;}
.nav-toggle span{width:22px;height:2px;background:#fff;}

/* breadcrumb */
.breadcrumb{padding:14px 20px;font-size:13px;color:var(--text-secondary);}
.breadcrumb a{color:var(--music-purple);}
.breadcrumb span{margin:0 6px;}

/* hero */
.hero{background:linear-gradient(120deg,var(--nav-dark),var(--music-purple));color:#fff;padding:52px 0;}
.hero-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:40px;align-items:center;}
.hero-badge{display:inline-block;background:var(--accent-gold);color:#171b29;font-size:12px;font-weight:700;padding:4px 12px;border-radius:14px;margin-bottom:14px;}
.hero h1{font-size:32px;margin-bottom:14px;}
.hero .sub{font-size:16px;color:#dedfe4;margin-bottom:16px;}
.hero p.intro{color:#c9cbd6;margin-bottom:22px;font-size:14px;}
.hero-btns{display:flex;gap:14px;margin-bottom:26px;flex-wrap:wrap;}
.btn{display:inline-block;padding:12px 26px;border-radius:22px;font-size:14px;font-weight:700;cursor:pointer;border:0;transition:.2s;}
.btn-primary{background:var(--vinyl-red);color:#fff;}
.btn-primary:hover{background:#a83e4b;}
.btn-outline{background:transparent;color:#fff;border:1px solid #6f7fa8;}
.btn-outline:hover{background:rgba(255,255,255,.08);}
.hero-stats{display:flex;gap:24px;flex-wrap:wrap;}
.hero-stats div{font-size:13px;color:#c9cbd6;}
.hero-stats b{display:block;font-size:19px;color:#fff;}
.hero-visual img{border-radius:18px;box-shadow:0 20px 50px rgba(0,0,0,.35);}
.page-hero{background:linear-gradient(120deg,var(--nav-dark),var(--music-purple));color:#fff;padding:44px 0;}
.page-hero h1{font-size:28px;margin-bottom:10px;}
.page-hero p{color:#dedfe4;font-size:14.5px;max-width:760px;}

/* zones */
.zone{padding:50px 0;}
.zone-alt{background:#fff;}
.zone-head{margin-bottom:26px;}
.zone-eyebrow{font-size:12px;color:var(--music-purple);font-weight:700;letter-spacing:1px;}
.zone-title{font-size:23px;margin-top:6px;}
.zone-desc{color:var(--text-secondary);font-size:13.5px;margin-top:6px;}
.notice-strip{background:#f4ecef;border:1px solid #e3c9cf;color:#8a3d47;font-size:13px;padding:10px 16px;border-radius:10px;margin-bottom:20px;}

/* download console */
.console{background:var(--nav-dark);border-radius:18px;padding:28px;color:#fff;display:grid;grid-template-columns:1.4fr 1fr;gap:26px;}
.console-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px;}
.console-tab{background:#222741;color:#c9cbd6;border:0;padding:9px 16px;border-radius:16px;font-size:13px;cursor:pointer;}
.console-tab.active{background:var(--music-purple);color:#fff;}
.console-panel{display:none;}
.console-panel.active{display:block;}
.console-meta-row{display:flex;flex-wrap:wrap;gap:14px;font-size:12.5px;color:#b6b9c9;margin-bottom:10px;}
.console-list{margin:10px 0;padding-left:18px;list-style:disc;font-size:13px;color:#dedfe4;}
.console-note{background:#222741;padding:10px 14px;border-radius:10px;font-size:12.5px;color:#b6b9c9;margin-bottom:14px;}
.qr-box{background:#222741;border-radius:14px;padding:18px;display:flex;gap:14px;align-items:center;font-size:12px;color:#b6b9c9;}
.compare-wrap{overflow-x:auto;margin-top:22px;}
table.compare{width:100%;border-collapse:collapse;background:#fff;border-radius:10px;overflow:hidden;font-size:13px;}
table.compare th,table.compare td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left;}
table.compare th{background:#eeeef1;font-weight:700;}

/* advisor */
.advisor-box{background:#fff;border-radius:16px;border:1px solid var(--border);padding:22px;margin-bottom:22px;}
.advisor-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:16px;}
.advisor-q p{font-size:13.5px;margin:6px 0 10px;}
.advisor-q .qn{font-size:11.5px;color:var(--music-purple);font-weight:700;}
.advisor-q .opts{display:flex;gap:8px;}
.advisor-q .opts button{background:#eeeef1;border:0;padding:8px 14px;border-radius:14px;font-size:12.5px;cursor:pointer;}
.advisor-q .opts button.selected{background:var(--music-purple);color:#fff;}
.advisor-result{background:#f1edf8;border-radius:12px;padding:14px 18px;font-size:14px;}
.advisor-result .r-value{font-size:18px;font-weight:700;color:var(--music-purple);}

/* static player */
.player-box{background:linear-gradient(120deg,#222741,var(--nav-dark));border-radius:18px;padding:24px;color:#fff;display:flex;gap:20px;align-items:center;flex-wrap:wrap;}
.player-cover{width:100px;height:100px;border-radius:12px;overflow:hidden;flex-shrink:0;}
.player-cover img{width:100%;height:100%;object-fit:cover;}
.player-info{flex:1;min-width:200px;}
.player-info .pt{font-size:16px;font-weight:700;margin-bottom:4px;}
.player-info .pa{font-size:12.5px;color:#b6b9c9;margin-bottom:10px;}
.player-progress{background:#3a3f5c;border-radius:6px;height:6px;overflow:hidden;margin-bottom:10px;}
.player-progress span{display:block;height:100%;width:35%;background:var(--accent-gold);}
.player-controls{display:flex;gap:14px;align-items:center;}
.player-controls button{background:#2c3150;border:0;color:#fff;width:38px;height:38px;border-radius:50%;cursor:pointer;font-size:14px;}
.player-controls button.play{background:var(--vinyl-red);width:46px;height:46px;font-size:18px;}
.player-note{font-size:11.5px;color:#9fa3b5;margin-top:10px;display:none;}
.player-note.show{display:block;}

/* music/bento */
.music-bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;}
.mb-big{grid-column:span 3;background:#fff;border-radius:16px;overflow:hidden;border:1px solid var(--border);}
.mb-big img{height:200px;object-fit:cover;width:100%;}
.mb-row{grid-column:span 6;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.mb-h{background:#fff;border-radius:14px;overflow:hidden;border:1px solid var(--border);display:flex;flex-direction:column;}
.mb-h img{height:120px;object-fit:cover;width:100%;}
.mb-compact-row{grid-column:span 6;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.mb-c{background:#fff;border-radius:14px;padding:14px;border:1px solid var(--border);}
.mb-body{padding:14px;}
.mb-tags{display:flex;gap:8px;font-size:11px;color:var(--text-secondary);margin-bottom:6px;flex-wrap:wrap;}
.mb-tags span{background:#eeeef1;padding:2px 8px;border-radius:10px;}
.mb-body h4{font-size:16px;margin-bottom:6px;}
.mb-body p{font-size:12.5px;color:var(--text-secondary);margin-bottom:8px;}
.mb-meta{font-size:11.5px;color:var(--text-secondary);display:flex;gap:10px;flex-wrap:wrap;margin-bottom:8px;}
.mb-more{font-size:12.5px;color:var(--music-purple);font-weight:700;}

/* album cards */
.album-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.album-card{background:#fff;border-radius:14px;overflow:hidden;border:1px solid var(--border);}
.album-card img{width:100%;aspect-ratio:1/1;object-fit:cover;}
.album-body{padding:16px;}
.album-body h4{font-size:15px;margin-bottom:8px;}
.album-facts{display:grid;grid-template-columns:1fr 1fr;gap:4px 10px;font-size:11.5px;color:var(--text-secondary);margin-bottom:10px;}
.album-facts b{color:var(--text);}
.album-body p{font-size:12.5px;color:var(--text-secondary);margin-bottom:8px;}
.album-big{grid-column:span 3;display:grid;grid-template-columns:1fr 1fr;gap:0;}
.album-big img{aspect-ratio:auto;height:100%;}
.album-big .album-body{padding:24px;}

/* categories */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.cat-card{background:#fff;border-radius:14px;padding:18px;border:1px solid var(--border);cursor:pointer;transition:.2s;}
.cat-card.hidden{display:none;}
.cat-card svg{margin-bottom:10px;}
.cat-card h4{font-size:15px;margin-bottom:6px;}
.cat-card p{font-size:12px;color:var(--text-secondary);}
.cat-filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px;}
.cat-filters button{background:#fff;border:1px solid var(--border);padding:8px 16px;border-radius:16px;font-size:13px;cursor:pointer;}
.cat-filters button.active{background:var(--music-purple);color:#fff;border-color:var(--music-purple);}

/* artist profiles */
.artist-cover{display:grid;grid-template-columns:1fr 1.3fr;gap:30px;align-items:start;background:#fff;border-radius:18px;border:1px solid var(--border);overflow:hidden;margin-bottom:30px;}
.artist-cover img{width:100%;height:100%;object-fit:cover;}
.artist-cover .body{padding:28px 28px 28px 0;}
.artist-cover h2{font-size:24px;margin-bottom:8px;}
.artist-cover .role{color:var(--music-purple);font-size:13px;font-weight:700;margin-bottom:14px;}
.artist-cover p{margin-bottom:12px;font-size:14.5px;}
.artist-facts{display:grid;grid-template-columns:1fr 1fr;gap:8px 16px;font-size:12.5px;color:var(--text-secondary);margin:14px 0;background:#f7f7f9;border-radius:10px;padding:14px 16px;}
.artist-facts b{color:var(--text);}
.artist-row-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:30px;}
.artist-row{background:#fff;border-radius:14px;overflow:hidden;border:1px solid var(--border);}
.artist-row img{width:100%;height:220px;object-fit:cover;}
.artist-row .body{padding:16px;}
.artist-row h4{font-size:15.5px;margin-bottom:4px;}
.artist-row .role{color:var(--music-purple);font-size:12px;font-weight:700;margin-bottom:8px;}
.artist-row p{font-size:12.5px;color:var(--text-secondary);}
.artist-archive-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.artist-archive{background:#fff;border-radius:12px;padding:16px;border:1px solid var(--border);text-align:center;}
.artist-archive .num{font-size:11px;color:var(--accent-gold);font-weight:700;}
.artist-archive h4{font-size:14px;margin:6px 0;}
.artist-archive .role{font-size:11.5px;color:var(--music-purple);margin-bottom:8px;}
.artist-archive p{font-size:11.5px;color:var(--text-secondary);}

/* articles */
.article-full{max-width:850px;margin:0 auto 34px;background:#fff;border-radius:16px;border:1px solid var(--border);overflow:hidden;}
.article-full img{width:100%;height:280px;object-fit:cover;}
.article-full .body{padding:26px;}
.article-meta{display:flex;gap:12px;font-size:12px;color:var(--text-secondary);margin-bottom:10px;flex-wrap:wrap;}
.article-meta span{background:#eeeef1;padding:2px 9px;border-radius:10px;}
.article-full h2{font-size:22px;margin-bottom:10px;}
.article-full .lead{font-size:14.5px;color:var(--text-secondary);margin-bottom:14px;}
.article-full p{margin-bottom:12px;font-size:14.5px;}
.article-full h3{font-size:16px;margin:16px 0 8px;color:var(--music-purple);}
.article-summary{background:#f7f7f9;border-radius:10px;padding:14px 16px;font-size:13.5px;margin-top:14px;}
.article-tags{font-size:11.5px;color:var(--text-secondary);margin-top:14px;}
.article-related{font-size:12.5px;margin-top:12px;border-top:1px solid var(--border);padding-top:12px;}
.article-related div{margin-bottom:6px;}
.article-related a{color:var(--music-purple);margin-right:14px;}
.article-nav{display:flex;justify-content:space-between;margin-top:14px;font-size:12.5px;}
.article-nav a{color:var(--music-purple);}
.toc-box{background:#f7f7f9;border-radius:10px;padding:14px 18px;font-size:13px;margin-bottom:16px;}
.toc-box b{display:block;margin-bottom:6px;}
.toc-box a{color:var(--music-purple);display:block;margin-bottom:4px;}

/* article compact rows for index */
.article-row-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px;}
.article-row2{background:#fff;border-radius:14px;overflow:hidden;border:1px solid var(--border);}
.article-row2 img{width:100%;height:150px;object-fit:cover;}
.article-row2 .body{padding:16px;}
.article-row2 h4{font-size:15.5px;margin-bottom:8px;}
.article-row2 p{font-size:12.5px;color:var(--text-secondary);margin-bottom:8px;}
.article-compact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.article-compact{background:#fff;border-radius:12px;padding:16px;border:1px solid var(--border);}
.article-compact h4{font-size:14px;margin-bottom:8px;}
.article-compact p{font-size:12px;color:var(--text-secondary);}

/* focus items on index */
.focus-item{background:#fff;border-radius:14px;border:1px solid var(--border);padding:20px;margin-bottom:16px;display:grid;grid-template-columns:140px 1fr;gap:18px;}
.focus-item img{width:140px;height:140px;object-fit:cover;border-radius:10px;}
.focus-item h4{font-size:15.5px;margin-bottom:6px;}
.focus-item p{font-size:13px;color:var(--text-secondary);margin-bottom:8px;}

/* updates */
.update-main{background:#fff;border-radius:14px;padding:20px;border:1px solid var(--border);margin-bottom:16px;}
.update-row-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:16px;}
.update-row{background:#fff;border-radius:12px;padding:14px;border:1px solid var(--border);}
.update-list{background:#fff;border-radius:14px;border:1px solid var(--border);overflow:hidden;}
.update-list-item{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;cursor:pointer;}
.update-list-item:last-child{border-bottom:0;}
.update-list-item .time{font-size:12px;color:var(--text-secondary);min-width:100px;}
.update-list-item .title{font-size:13.5px;flex:1;}
.update-detail{display:none;font-size:12.5px;color:var(--text-secondary);padding:0 18px 14px;}
.update-detail.open{display:block;}

/* versions */
.ver-console{display:grid;grid-template-columns:220px 1fr;gap:20px;background:#fff;border-radius:16px;border:1px solid var(--border);overflow:hidden;}
.ver-rail{background:#eeeef1;padding:10px;}
.ver-rail button{display:block;width:100%;text-align:left;background:none;border:0;padding:10px 12px;border-radius:8px;font-size:13px;cursor:pointer;margin-bottom:4px;}
.ver-rail button.active{background:var(--music-purple);color:#fff;}
.ver-panels{padding:22px;}
.ver-panel{display:none;}
.ver-panel.active{display:block;}
.ver-panel h4{font-size:17px;margin-bottom:6px;}
.ver-panel .meta{font-size:12px;color:var(--text-secondary);margin-bottom:10px;}
.ver-panel ul{padding-left:18px;list-style:disc;font-size:13px;color:var(--text);}

/* features grid */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.feat-big{grid-column:span 2;background:#fff;border-radius:14px;padding:22px;border:1px solid var(--border);}
.feat-row{grid-column:span 1;background:#fff;border-radius:14px;padding:18px;border:1px solid var(--border);}
.feat-icon{width:40px;height:40px;border-radius:10px;background:var(--music-purple);display:flex;align-items:center;justify-content:center;margin-bottom:10px;}
.feat-grid h4{font-size:15px;margin-bottom:6px;}
.feat-grid p{font-size:12.5px;color:var(--text-secondary);}

/* install */
.install-routes{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px;}
.route-card{background:#fff;border-radius:14px;padding:16px;border:1px solid var(--border);}
.route-card h4{font-size:14.5px;margin-bottom:10px;}
.route-step{font-size:12px;color:var(--text-secondary);padding:5px 0;border-bottom:1px dashed var(--border);}
.route-step:last-child{border-bottom:0;}
.trouble-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.trouble-item{background:#fff;border-radius:12px;padding:14px;border:1px solid var(--border);}
.trouble-item h4{font-size:13.5px;margin-bottom:6px;color:var(--vinyl-red);}
.trouble-item p{font-size:12px;color:var(--text-secondary);}

/* faq */
.faq-list{background:#fff;border-radius:14px;border:1px solid var(--border);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--border);}
.faq-item:last-child{border-bottom:0;}
.faq-q{width:100%;text-align:left;background:none;border:0;padding:16px 18px;font-size:14px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;}
.faq-q::after{content:"+";color:var(--music-purple);font-size:18px;}
.faq-item.open .faq-q::after{content:"−";}
.faq-a{display:none;padding:0 18px 16px;font-size:13px;color:var(--text-secondary);}
.faq-item.open .faq-a{display:block;}

/* footer */
.site-footer{background:var(--nav-dark);color:#c9cbd6;padding:44px 0 20px;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:24px;margin-bottom:22px;}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:12px;}
.footer-col ul li{margin-bottom:8px;font-size:12.5px;}
.footer-brand p{font-size:12.5px;color:#b6b9c9;margin-top:10px;}
.footer-disclaimer,.footer-brand-note,.footer-seo-note{font-size:12px;color:#989cab;border-top:1px solid #2a2f45;padding-top:14px;margin-top:10px;}
.footer-bottom{font-size:12px;color:#7d8092;margin-top:14px;}

.back-top{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;background:var(--music-purple);color:#fff;border:0;font-size:18px;cursor:pointer;display:none;box-shadow:0 6px 16px rgba(0,0,0,.25);}
.back-top.show{display:block;}

@media(max-width:992px){
  .hero-grid{grid-template-columns:1fr;}
  .console{grid-template-columns:1fr;}
  .mb-big{grid-column:span 6;}
  .mb-row{grid-template-columns:repeat(2,1fr);}
  .mb-compact-row{grid-template-columns:repeat(2,1fr);}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .album-grid{grid-template-columns:repeat(2,1fr);}
  .album-big{grid-column:span 2;grid-template-columns:1fr;}
  .artist-cover{grid-template-columns:1fr;}
  .artist-cover .body{padding:24px;}
  .artist-row-grid{grid-template-columns:repeat(2,1fr);}
  .artist-archive-grid{grid-template-columns:repeat(2,1fr);}
  .article-row-grid{grid-template-columns:1fr;}
  .article-compact-grid{grid-template-columns:1fr;}
  .focus-item{grid-template-columns:100px 1fr;}
  .update-row-grid{grid-template-columns:1fr;}
  .ver-console{grid-template-columns:1fr;}
  .feat-grid{grid-template-columns:repeat(2,1fr);}
  .feat-big{grid-column:span 2;}
  .install-routes{grid-template-columns:repeat(2,1fr);}
  .trouble-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .advisor-steps{grid-template-columns:1fr;}
}
@media(max-width:768px){
  .nav-menu{display:none;}
  .nav-toggle{display:flex;}
  .site-header.open .nav-menu{display:flex;flex-direction:column;position:absolute;top:64px;left:0;right:0;background:var(--nav-dark);padding:16px 20px;gap:10px;}
  .mb-row{grid-template-columns:1fr;}
  .mb-compact-row{grid-template-columns:1fr;}
  .cat-grid{grid-template-columns:1fr;}
  .album-grid{grid-template-columns:1fr;}
  .artist-row-grid{grid-template-columns:1fr;}
  .artist-archive-grid{grid-template-columns:1fr;}
  .feat-grid{grid-template-columns:1fr;}
  .feat-big{grid-column:span 1;}
  .install-routes{grid-template-columns:1fr;}
  .trouble-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero h1{font-size:26px;}
  .article-full .body{padding:18px;}
  .focus-item{grid-template-columns:1fr;}
  .focus-item img{width:100%;height:180px;}
}