/* hp.衰减器.中国 —— 原创主题：深空蓝黑 + 电浆紫 + 熔焰橙（热辐射/等离子母题） */
:root{
  --bg:#0A0E1A;
  --surface:#121A2E;
  --surface-2:#0E1526;
  --primary:#7C5CFF;
  --primary-soft:#9B82FF;
  --accent:#FF7A1A;
  --accent-soft:#FF9A4D;
  --line:#2A3654;
  --line-soft:#1C2740;
  --text:#E6ECF5;
  --text-dim:#9FB0CC;
  --header-h:64px;
  --h2-inset:0px;
  --container-pad:24px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  padding-top:var(--header-h);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary-soft);text-decoration:none;}
a:hover{color:var(--accent);}
img{max-width:100%;height:auto;}
h1,h2,h3,h4{line-height:1.35;color:#fff;font-weight:700;}

/* ===== 容器与面包屑对齐 ===== */
.hpa-container{max-width:1200px;margin:0 auto;padding:0 var(--container-pad);}
.hpa-breadcrumb{
  padding:18px 0 6px;
  font-size:13px;
  color:var(--text-dim);
  border-bottom:1px solid var(--line-soft);
  margin-bottom:18px;
}
.hpa-breadcrumb-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px;}
.hpa-breadcrumb-item:not(:last-child)::after{content:"›";margin-left:6px;color:var(--line);}
.hpa-breadcrumb-item a{color:var(--text-dim);}
.hpa-breadcrumb-item a:hover{color:var(--accent);}

/* ===== 顶部导航 ===== */
.hpa-header{position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:50;
  background:rgba(10,14,26,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.hpa-header-inner{max-width:1200px;margin:0 auto;height:100%;padding:0 var(--container-pad);
  display:flex;align-items:center;justify-content:space-between;}
.hpa-logo{font-weight:800;font-size:18px;color:#fff;letter-spacing:.5px;
  background:linear-gradient(90deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.hpa-nav{display:flex;align-items:center;gap:18px;}
.hpa-nav>a,.hpa-nav-group>summary{color:var(--text);font-size:15px;padding:6px 4px;cursor:pointer;list-style:none;}
.hpa-nav>a:hover{color:var(--accent);}
.hpa-nav-group{position:relative;}
.hpa-nav-group>summary::-webkit-details-marker{display:none;}
.hpa-nav-sub{position:absolute;top:100%;left:0;min-width:160px;background:var(--surface);
  border:1px solid var(--line);border-radius:10px;padding:8px;display:none;flex-direction:column;gap:2px;}
.hpa-nav-group[open]>.hpa-nav-sub{display:flex;}
.hpa-nav-sub a{color:var(--text-dim);padding:6px 10px;border-radius:6px;font-size:14px;}
.hpa-nav-sub a:hover{background:var(--surface-2);color:var(--accent);}
@media (min-width:1025px){
  .hpa-nav-group:hover>.hpa-nav-sub{display:flex;}
}
.hpa-nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;}
.hpa-nav-toggle span{width:24px;height:2px;background:var(--text);border-radius:2px;}

/* ===== 详情页栅格（内容在前，TOC 在后） ===== */
.hpa-layout-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:36px;align-items:start;}
.hpa-content-main{min-width:0;}
.hpa-h1{font-size:30px;margin:6px 0 14px;letter-spacing:.3px;}
.hpa-update{font-size:13px;color:var(--text-dim);margin-bottom:14px;}
.hpa-update time{color:var(--text-dim);}

/* ===== 列表栅格（侧栏在前 240px，内容 1fr） ===== */
.hpa-list-layout{width:100%;}
.hpa-list-grid{display:grid;grid-template-columns:240px minmax(0,1fr);gap:32px;align-items:start;}
.hpa-cat-side{min-width:0;}
.hpa-cat-panel,.hpa-toc-panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:18px;}
.hpa-cat-summary,.hpa-toc-summary{font-weight:700;color:#fff;cursor:pointer;font-size:15px;list-style:none;}
.hpa-cat-summary::-webkit-details-marker,.hpa-toc-summary::-webkit-details-marker{display:none;}
.hpa-cat-summary::after,.hpa-toc-summary::after{content:"▾";float:right;color:var(--text-dim);transition:transform .2s;}
.hpa-cat-panel[open]>.hpa-cat-summary::after,.hpa-toc-panel[open]>.hpa-toc-summary::after{transform:rotate(180deg);}
.hpa-category-list{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-direction:column;gap:4px;}
.hpa-category-item a{display:block;padding:7px 10px;border-radius:8px;color:var(--text-dim);font-size:14px;}
.hpa-category-item a:hover,.hpa-category-item a.active{background:var(--surface-2);color:var(--accent);}

/* ===== TOC（sticky，非 fixed） ===== */
.hpa-toc-aside{position:sticky;top:calc(var(--header-h) + 16px);max-height:calc(100vh - 100px);overflow-y:auto;}
.hpa-toc-list{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-direction:column;gap:6px;border-left:2px solid var(--line);}
.hpa-toc-item a{display:block;padding:2px 0 2px 12px;color:var(--text-dim);font-size:13px;line-height:1.5;}
.hpa-toc-item a:hover{color:var(--accent);}

/* ===== 文章/产品正文 ===== */
.hpa-article-body,.hpa-product-body{font-size:16px;color:var(--text);}
.hpa-article-body h2,.hpa-product-body h2{font-size:22px;margin:30px 0 12px;padding-left:12px;border-left:4px solid var(--primary);}
.hpa-article-body h3,.hpa-product-body h3{font-size:18px;margin:22px 0 10px;color:var(--primary-soft);}
.hpa-article-body p,.hpa-product-body p{margin:0 0 14px;}
.hpa-article-body ul,.hpa-product-body ul{margin:0 0 14px;padding-left:22px;}
.hpa-article-body li,.hpa-product-body li{margin:4px 0;}
.hpa-article-body blockquote,.hpa-product-body blockquote{margin:14px 0;padding:12px 16px;background:var(--surface);border-left:4px solid var(--accent);border-radius:0 10px 10px 0;color:var(--text-dim);}

/* ===== 表格边框覆盖（含 Markdown 裸 table） ===== */
.hpa-article-body table,.hpa-product-body table,.hpa-page-main table,table.hpa-spec{
  border-collapse:collapse;width:100%;margin:16px 0;font-size:15px;
  border:1px solid var(--line);
}
.hpa-article-body table th,.hpa-product-body table th,.hpa-page-main table th,table.hpa-spec th{
  background:linear-gradient(90deg,var(--primary),#5b43c9);color:#fff;font-weight:700;
  padding:10px 12px;text-align:left;border:1px solid var(--line);
}
.hpa-article-body table td,.hpa-product-body table td,.hpa-page-main table td,table.hpa-spec td{
  padding:9px 12px;border:1px solid var(--line);color:var(--text);vertical-align:top;
}
.hpa-article-body table tr:nth-child(even) td,.hpa-product-body table tr:nth-child(even) td,
.hpa-page-main table tr:nth-child(even) td,table.hpa-spec tr:nth-child(even) td{background:var(--surface-2);}

/* ===== FAQ（裸 details） ===== */
.hpa-faq{margin:24px 0;}
.hpa-faq-item{background:var(--surface);border:1px solid var(--line);border-radius:10px;margin-bottom:10px;padding:4px 16px;}
.hpa-faq-q{font-weight:600;color:#fff;cursor:pointer;padding:12px 0;list-style:none;}
.hpa-faq-q::-webkit-details-marker{display:none;}
.hpa-faq-q::before{content:"Q";display:inline-block;width:22px;height:22px;line-height:22px;text-align:center;
  background:var(--accent);color:#fff;border-radius:50%;font-size:12px;margin-right:10px;}
.hpa-faq-a{padding:0 0 12px 32px;color:var(--text-dim);}

/* ===== 相关阅读 / 产品 ===== */
.hpa-related{margin:30px 0 10px;padding:18px;background:var(--surface-2);border:1px solid var(--line);border-radius:12px;}
.hpa-related-title{font-size:18px;margin:0 0 12px;color:#fff;}
.hpa-related-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;}
.hpa-related-item a{color:var(--primary-soft);font-size:15px;}
.hpa-related-note{color:var(--text-dim);font-size:13px;margin-left:6px;}

/* ===== 列表页条目（非 card-grid） ===== */
.hpa-list-h1{font-size:26px;margin:0 0 8px;}
.hpa-list-intro{color:var(--text-dim);margin:0 0 18px;}
.hpa-list-items{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;}
.hpa-list-item{padding:18px 0;border-bottom:1px solid var(--line-soft);}
.hpa-list-item-title{font-size:18px;font-weight:600;color:var(--primary-soft);}
.hpa-list-item-title:hover{color:var(--accent);}
.hpa-list-item-date{display:inline-block;margin-left:10px;font-size:13px;color:var(--text-dim);}
.hpa-list-item-cat{display:inline-block;margin-left:10px;font-size:12px;color:var(--accent);border:1px solid var(--line);border-radius:20px;padding:1px 10px;}
.hpa-list-item-desc{color:var(--text-dim);margin:8px 0 0;font-size:14px;}

/* ===== 分页 ===== */
.hpa-pagination{margin:22px 0;display:flex;gap:8px;flex-wrap:wrap;}
.hpa-pagination a,.hpa-pagination span{padding:6px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;color:var(--text-dim);}
.hpa-pagination a:hover{color:var(--accent);border-color:var(--accent);}
.hpa-pagination .current{background:var(--primary);color:#fff;border-color:var(--primary);}
.hpa-pagination .disabled{opacity:.4;}

/* ===== 叶子页 ===== */
.hpa-page-main{max-width:820px;margin:0 auto;padding:10px 0 30px;}
.hpa-page-body{font-size:16px;color:var(--text);}
.hpa-page-body h2{font-size:22px;margin:26px 0 12px;padding-left:12px;border-left:4px solid var(--primary);}
.hpa-page-body h3{font-size:18px;margin:20px 0 10px;color:var(--primary-soft);}
.hpa-page-body table,.hpa-page-body ul{border-collapse:collapse;}
.hpa-page-body ul{padding-left:22px;margin:0 0 14px;}
.hpa-page-body li{margin:4px 0;}

/* ===== 首页 ===== */
.hpa-hero{position:relative;overflow:hidden;padding:64px 0 48px;border-bottom:1px solid var(--line);}
.hpa-hero-glow{position:absolute;top:-120px;right:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.35),rgba(255,122,26,.12) 60%,transparent 70%);filter:blur(20px);}
.hpa-hero-inner{position:relative;max-width:760px;}
.hpa-hero-kicker{color:var(--accent);font-size:14px;letter-spacing:2px;margin:0 0 12px;text-transform:uppercase;}
.hpa-hero-title{font-size:40px;margin:0 0 16px;line-height:1.25;
  background:linear-gradient(120deg,#fff 30%,var(--primary-soft));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.hpa-hero-sub{font-size:17px;color:var(--text-dim);margin:0 0 26px;}
.hpa-hero-cta{display:flex;gap:14px;flex-wrap:wrap;}
.hpa-btn{display:inline-block;padding:12px 26px;border-radius:30px;font-size:15px;font-weight:600;}
.hpa-btn-primary{background:linear-gradient(90deg,var(--primary),var(--accent));color:#fff;}
.hpa-btn-primary:hover{color:#fff;filter:brightness(1.08);}
.hpa-btn-ghost{border:1px solid var(--line);color:var(--text);}
.hpa-btn-ghost:hover{border-color:var(--accent);color:var(--accent);}

.hpa-stats{max-width:1200px;margin:0 auto;padding:30px var(--container-pad);display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.hpa-stat{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;text-align:center;}
.hpa-stat-num{display:block;font-size:24px;font-weight:800;color:var(--accent);}
.hpa-stat-label{display:block;font-size:13px;color:var(--text-dim);margin-top:6px;}

.hpa-home-section{max-width:1200px;margin:0 auto;padding:24px var(--container-pad);}
.hpa-section-title{font-size:24px;margin:0 0 18px;}
.hpa-cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.hpa-cat-grid-sm{grid-template-columns:repeat(3,1fr);}
.hpa-cat-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px;transition:transform .2s,border-color .2s;}
.hpa-cat-card:hover{transform:translateY(-4px);border-color:var(--primary);}
.hpa-cat-card-title{font-size:18px;margin:0 0 8px;color:#fff;}
.hpa-cat-card-desc{font-size:14px;color:var(--text-dim);margin:0;}
.hpa-home-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.hpa-home-col-title{font-size:18px;margin:0 0 12px;color:var(--primary-soft);}
.hpa-home-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.hpa-home-list a{color:var(--text-dim);font-size:15px;}
.hpa-home-list a:hover{color:var(--accent);}

/* ===== 首页产品介绍 ===== */
.hpa-intro{display:grid;grid-template-columns:1.45fr 1fr;gap:28px;align-items:start;}
.hpa-intro-text p{color:var(--text-dim);font-size:15.5px;margin:0 0 14px;line-height:1.85;}
.hpa-intro-text p:last-child{margin-bottom:0;}
.hpa-highlight-list{list-style:none;margin:0;padding:22px 24px;background:var(--surface);border:1px solid var(--line);border-radius:14px;display:flex;flex-direction:column;gap:12px;}
.hpa-highlight-list li{position:relative;padding-left:22px;font-size:14.5px;color:var(--text);line-height:1.6;}
.hpa-highlight-list li::before{content:"◆";position:absolute;left:0;top:1px;color:var(--accent);font-size:12px;}
.hpa-cta-band{background:linear-gradient(135deg,rgba(124,92,255,.16),rgba(255,122,26,.12));border:1px solid var(--line);border-radius:18px;padding:38px 32px;text-align:center;}
.hpa-cta-band h2{font-size:24px;margin:0 0 10px;}
.hpa-cta-band p{color:var(--text-dim);margin:0 0 22px;}
.hpa-cta-band .hpa-hero-cta{justify-content:center;}

/* ===== 归档 ===== */
.hpa-archive-h2{font-size:24px;margin:24px 0 14px;}
.hpa-archive-cat{font-size:18px;margin:18px 0 8px;color:var(--accent);}
.hpa-archive-list{list-style:none;margin:0 0 10px;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:8px 24px;}
.hpa-archive-list a{color:var(--text-dim);font-size:15px;}
.hpa-archive-list a:hover{color:var(--accent);}
.hpa-404{text-align:center;padding:60px 0;}

/* ===== 页脚 ===== */
.hpa-footer{background:var(--surface-2);border-top:1px solid var(--line);margin-top:50px;}
.hpa-footer-inner{max-width:1200px;margin:0 auto;padding:36px var(--container-pad);display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px;}
.hpa-footer-title{font-size:16px;color:#fff;margin:0 0 12px;}
.hpa-footer-desc{color:var(--text-dim);font-size:14px;margin:0;}
.hpa-footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;}
.hpa-footer-links a{color:var(--text-dim);font-size:14px;}
.hpa-footer-links a:hover{color:var(--accent);}
.hpa-footer-bottom{border-top:1px solid var(--line);padding:18px var(--container-pad);text-align:center;}
.hpa-footer-bottom p{color:var(--text-dim);font-size:13px;margin:0;}

/* ===== 悬浮胶囊 ===== */
.hpa-float{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:60;display:flex;flex-direction:column;gap:10px;}
.hpa-float-btn{width:54px;height:54px;border-radius:30px;background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;border:0;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:0 8px 24px rgba(124,92,255,.35);font-size:11px;gap:2px;transition:transform .15s;}
.hpa-float-btn:hover{transform:scale(1.06);color:#fff;}
.hpa-float-ico{font-size:18px;line-height:1;}

/* ===== 名片浮层 ===== */
.hpa-card-overlay{position:fixed;inset:0;background:rgba(5,8,16,.78);z-index:80;display:flex;align-items:center;justify-content:center;}
.hpa-card-overlay[hidden]{display:none;}
.hpa-card-box{position:relative;}
.hpa-card-img{width:300px;height:500px;object-fit:contain;display:block;border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,.5);}
.hpa-card-close{position:absolute;top:-14px;right:-14px;width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff;border:0;font-size:20px;cursor:pointer;line-height:1;}

/* ===== 响应式折叠（≤1024 手机端：栅格单列，面板默认折叠由 JS 控制，禁止 display:none 隐藏导航） ===== */
@media (max-width:1024px){
  .hpa-layout-grid{grid-template-columns:1fr;}
  .hpa-list-grid{grid-template-columns:1fr;}
  .hpa-toc-aside{position:static;max-height:none;margin-top:18px;}
  .hpa-cat-side{margin-bottom:14px;}
  .hpa-stats{grid-template-columns:repeat(2,1fr);}
  .hpa-cat-grid{grid-template-columns:1fr;}
  .hpa-cat-grid-sm{grid-template-columns:repeat(2,1fr);}
  .hpa-home-cols{grid-template-columns:1fr;}
  .hpa-intro{grid-template-columns:1fr;}
  .hpa-archive-list{grid-template-columns:1fr;}
  .hpa-footer-inner{grid-template-columns:1fr;}
  .hpa-hero-title{font-size:30px;}
  .hpa-nav{display:none;position:absolute;top:var(--header-h);left:0;right:0;flex-direction:column;align-items:stretch;
    background:var(--surface);border-bottom:1px solid var(--line);padding:10px var(--container-pad);gap:4px;}
  .hpa-nav.open{display:flex;}
  .hpa-nav>a,.hpa-nav-group>summary{padding:10px 4px;}
  .hpa-nav-sub{position:static;display:flex;background:transparent;border:0;padding:0 0 0 14px;}
  .hpa-nav-toggle{display:flex;}
}