/* ============================================================
   Music2026 主题样式  - 音乐红 / 金色音符 / 内嵌卡片 / 响应式
   ============================================================ */
:root{
  --brand:#c8161d;
  --brand-d:#9c1017;
  --brand-soft:#fcebec;
  --accent:#e8a93a;
  --ink:#1f242b;
  --ink-2:#4a515b;
  --ink-3:#7d858f;
  --line:#e7e4e2;
  --bg:#f6f4f3;
  --card:#ffffff;
  --radius:14px;
  --shadow:0 2px 14px rgba(156,16,23,.08);
  --shadow-h:0 10px 28px rgba(156,16,23,.16);
  --w:1200px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);
  background:var(--bg);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0 0 .6em;line-height:1.35;font-weight:700;color:var(--ink);}
p{margin:0 0 1em;}
a{color:var(--brand-d);text-decoration:none;transition:color .15s;}
a:hover{color:var(--brand);}
img{max-width:100%;height:auto;border:0;}
ul,ol{margin:0 0 1em;padding-left:1.4em;}
.container{max-width:var(--w);margin:0 auto;padding:0 20px;width:100%;}
.muted{color:var(--ink-3);}
.empty-tip{color:var(--ink-2);background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:26px;text-align:center;}

/* ---------------- 顶部导航 ---------------- */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;box-shadow:0 1px 0 rgba(0,0,0,.02);}
.header-inner{display:flex;align-items:center;height:66px;gap:20px;}
.brand-name{font-size:22px;font-weight:800;color:var(--brand);letter-spacing:.5px;white-space:nowrap;}
.brand-name:hover{color:var(--brand-d);}
.brand-logo{flex-shrink:0;display:flex;align-items:center;}
.brand-logo img{height:44px;width:auto;display:block;}
.nav-wrap{margin-left:auto;display:flex;align-items:center;gap:16px;}
.nav-menu{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:2px;}
.nav-menu li{position:relative;}
.nav-menu > li > a{display:block;padding:7px 12px;color:#fff;background:var(--brand);font-size:14px;font-weight:600;border-radius:5px;white-space:nowrap;}
.nav-menu > li > a:hover,.nav-menu li.current > a{color:#fff;background:var(--brand-d);}
.nav-menu li ul{position:absolute;top:100%;left:0;min-width:190px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow-h);list-style:none;padding:6px;margin:0;opacity:0;visibility:hidden;transform:translateY(6px);transition:all .16s;z-index:50;}
.nav-menu li:hover > ul{opacity:1;visibility:visible;transform:translateY(0);}
.nav-menu li ul li{display:block;}
.nav-menu li ul a{display:block;padding:8px 14px;color:var(--ink);font-size:14.5px;border-radius:6px;white-space:nowrap;}
.nav-menu li ul a:hover{background:var(--brand-soft);color:var(--brand-d);}
.nav-search{display:flex;align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:20px;padding:2px 4px 2px 14px;}
.nav-search input{border:0;background:transparent;outline:none;font-size:14px;width:100px;color:var(--ink);}
.nav-search button{border:0;background:var(--brand);color:#fff;font-size:13px;border-radius:16px;padding:5px 14px;cursor:pointer;}
.nav-search button:hover{background:var(--brand-d);}
.nav-toggle{display:none;flex-direction:column;justify:center;gap:5px;width:42px;height:42px;background:transparent;border:0;cursor:pointer;margin-left:auto;padding:0 9px;}
.nav-toggle span{display:block;height:2.5px;background:var(--ink);border-radius:2px;transition:.25s;}
.nav-toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg);}

/* ---------------- Hero 内嵌浮卡片 ---------------- */
.hero{background:var(--bg);padding:34px 0 8px;}
.hero-card{position:relative;overflow:hidden;background:linear-gradient(130deg,#d8202a 0%,#9c1017 100%);border-radius:22px;padding:48px 50px;color:#fff;display:flex;align-items:center;gap:40px;box-shadow:0 20px 44px rgba(156,16,23,.30);}
.hero-card:before{content:"";position:absolute;right:-70px;top:-80px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.08);}
.hero-card:after{content:"";position:absolute;right:90px;bottom:-120px;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.06);}
.hero-text{flex:1;min-width:0;position:relative;z-index:1;}
.hero h1{color:#fff;font-size:32px;margin-bottom:12px;letter-spacing:.5px;}
.hero p{font-size:16.5px;opacity:.93;margin:0;}
.hero-search{flex:0 0 320px;display:flex;background:#fff;border-radius:30px;padding:6px;box-shadow:0 12px 30px rgba(0,0,0,.22);position:relative;z-index:1;}
.hero-search input{flex:1;border:0;outline:none;padding:10px 18px;font-size:15px;border-radius:24px;color:var(--ink);background:transparent;}
.hero-search button{border:0;background:var(--brand);color:#fff;font-size:15px;padding:11px 26px;border-radius:24px;cursor:pointer;font-weight:600;}
.hero-search button:hover{background:var(--brand-d);}

/* ---------------- 布局 ---------------- */
.layout{display:flex;gap:28px;margin:28px auto 40px;align-items:flex-start;}
.content-col{flex:1;min-width:0;background:transparent;}
.sidebar-col{width:310px;flex:0 0 310px;position:sticky;top:86px;}
.list-head{margin-bottom:18px;}
.list-head h1,.list-head h2{font-size:24px;margin:0;display:flex;align-items:center;gap:10px;}
.list-head h1:after,.list-head h2:after{content:"";flex:1;height:1px;background:var(--line);}
.cate-desc{color:var(--ink-2);font-size:15px;margin-top:8px;}

/* ---------------- 列表：两列竖向网格卡片 ---------------- */
.post-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:box-shadow .18s,transform .18s;height:100%;}
.post-card:hover{box-shadow:var(--shadow-h);transform:translateY(-2px);}
.card-thumb{flex:none;width:100%;height:185px;position:relative;overflow:hidden;background:var(--bg);}
.card-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s;}
.post-card:hover .card-thumb img{transform:scale(1.05);}
.card-thumb-ph{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--brand-soft),#fdf2f2);color:var(--brand);}
.card-thumb-ph svg{opacity:.5;transition:transform .3s,opacity .3s;}
.post-card:hover .card-thumb-ph svg{transform:scale(1.08);opacity:.78;}
.card-body{padding:18px 20px 20px;flex:1;min-width:0;display:flex;flex-direction:column;}
.card-title{font-size:18px;line-height:1.4;margin-bottom:8px;}
.card-title a{color:var(--ink);}
.card-title a:hover{color:var(--brand-d);}
.card-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--ink-3);margin-bottom:8px;}
.card-meta a{color:var(--ink-3);}
.card-meta a:hover{color:var(--brand-d);}
.card-excerpt{color:var(--ink-2);font-size:14px;margin:0 0 10px;line-height:1.7;}
.card-more{margin-top:auto;align-self:flex-start;font-size:14px;font-weight:600;color:var(--brand-d);}
.card-more:hover{color:var(--brand);}
.top-badge{display:inline-block;background:var(--brand);color:#fff;font-size:12px;padding:2px 9px;border-radius:5px;margin-bottom:6px;align-self:flex-start;}
.post-card.is-top{border-color:var(--brand);}

/* ---------------- 文章页 ---------------- */
.post-single{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:34px 40px;box-shadow:var(--shadow);}
.post-header{margin-bottom:20px;padding-bottom:18px;border-bottom:1px solid var(--line);}
.post-title{font-size:29px;line-height:1.35;margin-bottom:14px;}
.post-meta{display:flex;flex-wrap:wrap;gap:16px;font-size:13.5px;color:var(--ink-3);}
.post-meta a{color:var(--ink-3);}
.post-meta a:hover{color:var(--brand-d);}

/* 核心直答 */
.geo-tldr{background:var(--brand-soft);border:1px solid #cdddf2;border-left:4px solid var(--brand);border-radius:10px;padding:16px 20px;margin-bottom:24px;}
.geo-tldr-label{display:inline-block;background:var(--brand);color:#fff;font-size:12.5px;font-weight:700;padding:3px 12px;border-radius:20px;margin-bottom:8px;}
.geo-tldr p{margin:0;color:#1d3f6e;font-size:15.5px;line-height:1.8;}

/* 正文 */
.post-content{font-size:16.5px;line-height:1.9;color:#2c3744;}
.post-content > *:last-child{margin-bottom:0;}
.post-content h2{font-size:22px;margin:1.7em 0 .8em;padding-left:12px;border-left:4px solid var(--brand);line-height:1.4;}
.post-content h3{font-size:19px;margin:1.5em 0 .7em;color:var(--brand-d);}
.post-content h4{font-size:17px;margin:1.3em 0 .6em;}
.post-content p{margin-bottom:1.15em;}
.post-content ul,.post-content ol{margin-bottom:1.15em;padding-left:1.6em;}
.post-content li{margin-bottom:.4em;}
.post-content img{border-radius:8px;display:block;margin:18px auto;box-shadow:var(--shadow);}
.post-content blockquote{margin:1.2em 0;padding:12px 18px;background:var(--bg);border-left:4px solid var(--brand);color:var(--ink-2);border-radius:0 8px 8px 0;}
.post-content a{border-bottom:1px solid rgba(30,90,168,.35);}
.post-content a:hover{border-bottom-color:var(--brand);}

/* 有序列表 = 操作步骤观感 */
.post-content ol{counter-reset:step;list-style:none;padding-left:0;}
.post-content ol > li{position:relative;padding-left:42px;margin-bottom:14px;counter-increment:step;}
.post-content ol > li:before{content:counter(step);position:absolute;left:0;top:2px;width:28px;height:28px;background:var(--brand);color:#fff;border-radius:50%;text-align:center;line-height:28px;font-size:14px;font-weight:700;}

/* 表格（对比表） */
.table-wrap{overflow-x:auto;margin:1.3em 0;border:1px solid var(--line);border-radius:10px;}
.post-content table{width:100%;border-collapse:collapse;font-size:15px;margin:0;min-width:520px;}
.post-content table th{background:var(--brand);color:#fff;text-align:left;padding:12px 16px;font-weight:600;white-space:nowrap;}
.post-content table td{padding:11px 16px;border-bottom:1px solid var(--line);}
.post-content table tr:nth-child(even) td{background:#f2f6fc;}
.post-content table tr:last-child td{border-bottom:0;}

/* 标签 */
.post-tags{margin-top:26px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.tags-label{font-size:14px;color:var(--ink-3);}
.tag-chip{display:inline-block;background:var(--bg);border:1px solid var(--line);color:var(--ink-2)!important;font-size:13.5px;padding:4px 13px;border-radius:20px;}
.tag-chip:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-d)!important;}

/* FAQ 模块 */
.geo-faq{margin-top:30px;}
.geo-block-title{font-size:21px;margin-bottom:14px;padding-left:12px;border-left:4px solid var(--brand);}
.geo-faq-item{background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:10px;overflow:hidden;transition:border-color .15s,box-shadow .15s;}
.geo-faq-item[open]{border-color:var(--brand);box-shadow:var(--shadow);}
.geo-faq-item summary{cursor:pointer;list-style:none;padding:14px 18px;font-size:16px;font-weight:600;color:var(--ink);position:relative;padding-right:44px;outline:none;}
.geo-faq-item summary::-webkit-details-marker{display:none;}
.geo-faq-item summary:after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:22px;color:var(--brand);font-weight:400;transition:transform .2s;line-height:1;}
.geo-faq-item[open] summary:after{content:"−";}
.geo-faq-answer{padding:2px 18px 16px;color:var(--ink-2);font-size:15px;line-height:1.85;}
.geo-faq-answer p{margin:0;}

/* 上下篇 */
.post-pager{margin-top:28px;display:flex;flex-direction:column;gap:10px;border-top:1px solid var(--line);padding-top:20px;}
.pager-prev,.pager-next{display:flex;gap:10px;font-size:14.5px;align-items:baseline;}
.pager-label{flex:0 0 56px;color:var(--ink-3);font-size:13px;}
.pager-prev a,.pager-next a{color:var(--ink-2);}
.pager-prev a:hover,.pager-next a:hover{color:var(--brand-d);}

/* 相关文章 */
.related-posts{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px 30px;margin-top:22px;box-shadow:var(--shadow);}
.related-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px 22px;}
.related-list li{display:flex;flex-direction:column;border-bottom:1px dashed var(--line);padding-bottom:8px;}
.related-title{font-size:14.5px;color:var(--ink-2);line-height:1.5;}
.related-title:hover{color:var(--brand-d);}
.related-date{font-size:12.5px;color:var(--ink-3);margin-top:2px;}

/* ---------------- 侧栏 ---------------- */
.side-module{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);margin:0 0 18px;padding:0;box-shadow:var(--shadow);}
.side-module-title{margin:0;padding:14px 18px;font-size:16px;border-bottom:1px solid var(--line);position:relative;padding-left:16px;}
.side-module-title:before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;background:var(--brand);border-radius:2px;}
.side-module-body{padding:14px 18px;}
.side-module-body ul{list-style:none;margin:0;padding:0;}
.side-module-body li{padding:8px 0;border-bottom:1px dashed var(--line);font-size:14.5px;}
.side-module-body li:last-child{border-bottom:0;}
.side-module-body li a{color:var(--ink-2);}
.side-module-body li a:hover{color:var(--brand-d);}
.side-module-body > div{font-size:14.5px;color:var(--ink-2);}
.hot-list li a{display:block;line-height:1.55;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud a{display:inline-block;background:var(--bg);border:1px solid var(--line);color:var(--ink-2);font-size:13px;padding:3px 11px;border-radius:16px;line-height:1.6;}
.tag-cloud a:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-d);}

/* ---------------- 分页条 ---------------- */
.pagebar{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:28px;}
.page-item{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 12px;background:#fff;border:1px solid var(--line);border-radius:8px;color:var(--ink-2);font-size:14.5px;}
a.page-item:hover{border-color:var(--brand);color:var(--brand-d);}
.page-item.current{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}

/* ---------------- 底部 ---------------- */
.site-footer{background:#16242f;color:#b6c2d2;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px;padding:48px 20px 38px;}
.site-footer h4{color:#fff;font-size:17px;margin-bottom:16px;}
.footer-desc{font-size:14px;color:#8fa0b6;line-height:1.8;}
.footer-line{font-size:14px;color:#8fa0b6;margin-bottom:8px;}
.footer-line a{color:#c4d2e4;}
.footer-line a:hover{color:#6fa0dd;}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#aebfd4;font-size:14.5px;}
.footer-links a:hover{color:#6fa0dd;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);}
.footer-bottom-inner{display:flex;flex-wrap:wrap;gap:18px;align-items:center;padding:16px 20px;font-size:13px;color:#7e8fa6;}
.footer-bottom a{color:#7e8fa6;}
.footer-bottom a:hover{color:#6fa0dd;}

/* ---------------- 404 ---------------- */
.error-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;padding:54px 30px;margin:40px auto;max-width:600px;}
.error-code{font-size:72px;font-weight:800;color:var(--brand);line-height:1;margin-bottom:10px;}
.error-box h1{font-size:24px;}
.error-box p{color:var(--ink-2);}
.error-search{display:flex;max-width:420px;margin:18px auto;gap:8px;}
.error-search input{flex:1;border:1px solid var(--line);border-radius:8px;padding:11px 14px;font-size:15px;outline:none;}
.error-search input:focus{border-color:var(--brand);}
.error-search button{border:0;background:var(--brand);color:#fff;border-radius:8px;padding:0 22px;font-size:15px;cursor:pointer;}
.btn-home{display:inline-block;margin-top:10px;background:var(--brand);color:#fff!important;padding:11px 30px;border-radius:24px;font-weight:600;}
.btn-home:hover{background:var(--brand-d);}

/* ---------------- 回到顶部 ---------------- */
.back-to-top{position:fixed;right:26px;bottom:30px;width:46px;height:46px;border-radius:50%;background:var(--brand);color:#fff;border:0;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-h);opacity:0;visibility:hidden;transform:translateY(12px);transition:.25s;z-index:90;}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-to-top:hover{background:var(--brand-d);}

/* ---------------- 评论（兼容系统模板） ---------------- */
#comments,.txf-comments{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 32px;margin-top:22px;box-shadow:var(--shadow);}
#comments h4,.txf-comments h4{font-size:19px;margin-bottom:16px;}
.comment,.txf-comment{padding:14px 0;border-bottom:1px dashed var(--line);font-size:14.5px;}
.comment:last-child,.txf-comment:last-child{border-bottom:0;}
.comment .commentavatar,.txf-comment img.avatar{float:left;margin:2px 14px 8px 0;border-radius:50%;}
.comment .commentauthor,.txf-comment .commentauthor{font-weight:600;color:var(--ink);}
.comment .commentdate,.txf-comment .commentdate{font-size:12.5px;color:var(--ink-3);margin-left:8px;}
.comment p,.txf-comment p{color:var(--ink-2);margin:.4em 0;}
#commentpost,.txf-commentpost{margin-top:18px;}
#commentpost input[type=text],.txf-commentpost input[type=text],#commentpost textarea,.txf-commentpost textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:14.5px;margin-bottom:10px;outline:none;font-family:inherit;}
#commentpost textarea,.txf-commentpost textarea{min-height:96px;resize:vertical;}
#commentpost input[type=submit],.txf-commentpost input[type=submit]{background:var(--brand);color:#fff;border:0;border-radius:8px;padding:10px 26px;font-size:15px;cursor:pointer;}
#commentpost input[type=submit]:hover,.txf-commentpost input[type=submit]:hover{background:var(--brand-d);}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1000px){
  .layout{flex-direction:column;align-items:stretch;}
  .sidebar-col{width:100%;flex:none;position:static;}
  .related-list{grid-template-columns:1fr;}
}
@media (max-width:1280px){
  .nav-toggle{display:flex;}
  .nav-wrap{position:fixed;top:66px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:10px 18px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-h);display:none;max-height:calc(100vh - 66px);overflow-y:auto;}
  .nav-wrap.open{display:flex;}
  .nav-menu{flex-direction:column;align-items:stretch;gap:0;}
  .nav-menu > li > a{padding:13px 10px;border-radius:0;border-bottom:1px solid var(--line);color:var(--ink);background:transparent;font-weight:500;}
  .nav-menu li ul{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;border-radius:0;padding:0 0 0 14px;min-width:0;display:none;}
  .nav-menu li.open-sub > ul{display:block;}
  .nav-search{margin-top:12px;width:100%;}
  .nav-search input{flex:1;width:auto;}
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-about{grid-column:1/-1;}
}
@media (max-width:760px){
  .post-list{grid-template-columns:1fr;}
  .hero-card{flex-direction:column;align-items:stretch;gap:24px;padding:32px 26px;}
  .hero-search{flex:none;width:100%;}
  .hero h1{font-size:26px;}
}
@media (max-width:600px){
  .post-single{padding:24px 20px;}
  .post-title{font-size:23px;}
  .related-posts{padding:20px;}
  #comments{padding:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .post-meta{gap:10px;}
}

@media (max-width: 768px) {
html,body{width:100%!important;overflow-x:hidden!important;margin:0!important;padding:0!important;}
.container,.footer-grid{width:100%!important;max-width:100%!important;padding:10px!important;box-sizing:border-box!important;}
.footer-col{width:100%!important;float:none!important;margin:15px 0!important;}
img{max-width:100%!important;height:auto!important;}
}

/* ===== 防溢出补丁 0926 ===== */
.breadcrumb{font-size:13px;line-height:1.7;color:var(--ink-2);margin-bottom:20px;word-break:break-all;}
.breadcrumb a{color:var(--brand-d);}
.breadcrumb .sep{margin:0 7px;color:var(--line);}
.breadcrumb .current{color:var(--ink-2);}
.post-title{overflow-wrap:anywhere;}
.post-content{overflow-wrap:break-word;word-break:break-word;}
.post-content a{overflow-wrap:anywhere;}
.post-content img{max-width:100%;height:auto;}
.post-content pre{white-space:pre-wrap;word-break:break-word;}