:root{
  --spc-bg:#0B0A1E;
  --spc-bg-2:#121026;
  --spc-bg-3:#1A1633;
  --spc-text:#C9D4E6;
  --spc-text-dim:#8B93AE;
  --spc-orange:#FF8A3D;
  --spc-cyan:#3FE0D0;
  --spc-blue:#5B8CFF;
  --spc-line:#2A2750;
  --spc-table-border:#4A4670;
  --spc-h2-inset:0px;
  --spc-header-h:64px;
  --spc-container:1180px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--spc-bg);
  color:var(--spc-text);
  font-family:"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.75;
  padding-top:var(--spc-header-h);
}
a{color:var(--spc-cyan);text-decoration:none;}
a:hover{color:var(--spc-orange);}
img{max-width:100%;}
h1,h2,h3,h4{color:#EAF0FB;line-height:1.35;font-weight:700;}
code{background:var(--spc-bg-3);padding:2px 6px;border-radius:5px;font-family:ui-monospace,Consolas,monospace;color:var(--spc-cyan);}

/* ===== 顶部导航 ===== */
.spc-header{position:fixed;top:0;left:0;right:0;height:var(--spc-header-h);z-index:50;
  background:rgba(11,10,30,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--spc-line);}
.spc-header-inner{max-width:var(--spc-container);margin:0 auto;height:100%;
  display:flex;align-items:center;justify-content:space-between;padding:0 24px;}
.spc-brand{display:flex;align-items:center;gap:10px;color:#EAF0FB;font-weight:700;font-size:17px;}
.spc-brand-mark{color:var(--spc-orange);font-size:20px;}
.spc-nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;}
.spc-nav-toggle span{width:24px;height:2px;background:var(--spc-text);border-radius:2px;}
.spc-nav-list{display:flex;gap:6px;list-style:none;margin:0;padding:0;align-items:center;}
.spc-nav-item{position:relative;}
.spc-nav-item>a{display:block;padding:10px 14px;color:var(--spc-text);border-radius:8px;font-size:15px;}
.spc-nav-item>a:hover{background:var(--spc-bg-3);color:#EAF0FB;}
.spc-has-sub>.spc-submenu{position:absolute;top:100%;left:0;min-width:180px;
  background:var(--spc-bg-2);border:1px solid var(--spc-line);border-radius:10px;
  list-style:none;margin:6px 0 0;padding:6px;display:none;box-shadow:0 12px 30px rgba(0,0,0,.45);}
.spc-has-sub:hover>.spc-submenu{display:block;}
.spc-submenu li>a{display:block;padding:8px 12px;border-radius:7px;color:var(--spc-text);}
.spc-submenu li>a:hover{background:var(--spc-bg-3);color:var(--spc-cyan);}
.spc-nav-mobile{display:none;flex-direction:column;background:var(--spc-bg-2);border-bottom:1px solid var(--spc-line);padding:10px 24px;}
.spc-nav-mobile[hidden]{display:none;}
.spc-nav-mobile a{padding:10px 4px;color:var(--spc-text);border-bottom:1px solid var(--spc-line);}
.spc-nav-mobile .spc-nav-sub{padding-left:22px;font-size:14px;color:var(--spc-text-dim);}

/* ===== 容器 / 面包屑 ===== */
.spc-container{max-width:var(--spc-container);margin:0 auto;padding:0 24px;}
.spc-breadcrumb{padding:16px 0 6px;font-size:13px;color:var(--spc-text-dim);}
.spc-breadcrumb-list{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;}
.spc-breadcrumb-item:not(:last-child)::after{content:"›";margin-left:8px;color:var(--spc-line);}
.spc-breadcrumb-item a{color:var(--spc-text-dim);}
.spc-breadcrumb-item a:hover{color:var(--spc-cyan);}

/* ===== 栅格 ===== */
.spc-layout-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:36px;align-items:start;
  padding:14px 0 50px;}
.spc-list-layout{padding:14px 0 50px;}
.spc-list-layout .spc-layout-grid{grid-template-columns:240px minmax(0,1fr);gap:36px;}

/* ===== 正文 ===== */
.spc-content-main{min-width:0;}
.spc-content-main h1{font-size:30px;margin:6px 0 18px;}
.spc-content-main h2{font-size:22px;margin:34px 0 12px;padding-left:12px;border-left:4px solid var(--spc-orange);}
.spc-content-main h3{font-size:18px;margin:24px 0 10px;color:var(--spc-cyan);}
.spc-content-main p{margin:0 0 14px;}
.spc-content-main ul,.spc-content-main ol{margin:0 0 16px;padding-left:24px;}
.spc-content-main li{margin:6px 0;}
.spc-content-main blockquote{margin:16px 0;padding:12px 16px;background:var(--spc-bg-3);
  border-left:4px solid var(--spc-cyan);border-radius:8px;color:var(--spc-text);}
.spc-content-main blockquote>p{margin:0;}
.spc-content-main .spc-summary{background:linear-gradient(135deg,rgba(255,138,61,.10),rgba(63,224,208,.08));
  border:1px solid var(--spc-line);border-radius:12px;padding:16px 18px;margin:14px 0 18px;}
.spc-content-main .spc-keywords{color:var(--spc-text-dim);font-size:14px;margin-bottom:8px;}
.spc-content-main .spc-update-time{color:var(--spc-text-dim);font-size:13px;margin-bottom:18px;}

/* ===== 表格（覆盖全部正文 table） ===== */
.spc-content-main table,table.spc-spec{border-collapse:collapse;width:100%;margin:18px 0;
  font-size:14.5px;background:var(--spc-bg-2);border-radius:10px;overflow:hidden;}
.spc-content-main th,.spc-content-main td,table.spc-spec th,table.spc-spec td{
  border:1px solid var(--spc-table-border);padding:10px 13px;text-align:left;vertical-align:top;}
.spc-content-main th,table.spc-spec th{background:#1C1740;color:var(--spc-cyan);font-weight:600;}
.spc-content-main tbody tr:nth-child(even),table.spc-spec tbody tr:nth-child(even){background:rgba(255,255,255,.03);}

/* ===== TOC / 分类侧栏（原生 details） ===== */
.spc-toc-aside{position:sticky;top:calc(var(--spc-header-h) + 16px);max-height:calc(100vh - 100px);overflow-y:auto;}
.spc-toc-panel,.spc-cat-panel{background:var(--spc-bg-2);border:1px solid var(--spc-line);border-radius:12px;padding:12px 14px;}
.spc-toc-summary,.spc-cat-summary{cursor:pointer;font-weight:700;color:#EAF0FB;list-style:none;padding:4px 0;}
.spc-toc-summary::-webkit-details-marker{display:none;}
.spc-toc-summary::after,.spc-cat-summary::after{content:"▾";float:right;color:var(--spc-orange);transition:transform .2s;}
.spc-toc-panel[open]>.spc-toc-summary::after,.spc-cat-panel[open]>.spc-cat-summary::after{transform:rotate(180deg);}
.spc-toc-list{list-style:none;margin:10px 0 0;padding:0;}
.spc-toc-list li{margin:7px 0;font-size:14px;}
.spc-toc-list a{color:var(--spc-text-dim);}
.spc-toc-list a:hover{color:var(--spc-cyan);}

.spc-cat-side{}
.spc-category-list{list-style:none;margin:10px 0 0;padding:0;}
.spc-category-item{margin:4px 0;}
.spc-category-item>a{display:block;padding:9px 12px;border-radius:8px;color:var(--spc-text);}
.spc-category-item>a:hover{background:var(--spc-bg-3);color:var(--spc-cyan);}
.spc-category-active>a{background:linear-gradient(135deg,rgba(255,138,61,.18),rgba(63,224,208,.12));color:#EAF0FB;font-weight:600;}

/* ===== 列表卡片 ===== */
.spc-cat-content{min-width:0;}
.spc-list-h1{font-size:28px;margin:6px 0 8px;}
.spc-list-desc{color:var(--spc-text-dim);margin:0 0 22px;}
.spc-card-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.spc-card-list-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.spc-card{background:var(--spc-bg-2);border:1px solid var(--spc-line);border-radius:14px;transition:transform .15s,border-color .15s;}
.spc-card:hover{transform:translateY(-3px);border-color:var(--spc-orange);}
.spc-card-link{display:block;padding:18px 20px;}
.spc-card-title{font-size:18px;margin:0 0 8px;color:#EAF0FB;}
.spc-card-summary{color:var(--spc-text-dim);font-size:14px;margin:0;}
.spc-card-meta{color:var(--spc-cyan);font-size:12.5px;margin:10px 0 0;}

/* ===== FAQ ===== */
.spc-faq{margin:30px 0 10px;border-top:1px solid var(--spc-line);padding-top:18px;}
.spc-faq-h{font-size:20px;margin:0 0 12px;color:#EAF0FB;}
.spc-faq-item{background:var(--spc-bg-2);border:1px solid var(--spc-line);border-radius:10px;margin:10px 0;padding:4px 14px;}
.spc-faq-q{cursor:pointer;font-weight:600;color:#EAF0FB;padding:10px 0;list-style:none;}
.spc-faq-q::-webkit-details-marker{display:none;}
.spc-faq-q::before{content:"Q ";color:var(--spc-orange);font-weight:800;}
.spc-faq-a{padding:0 0 12px;color:var(--spc-text);}
.spc-faq-a::before{content:"A ";color:var(--spc-cyan);font-weight:800;}

/* ===== 分页 ===== */
.spc-pagination{margin:26px 0;}
.spc-pagination-list{list-style:none;display:flex;gap:8px;padding:0;margin:0;flex-wrap:wrap;}
.spc-pagination-list a{display:block;padding:8px 13px;border:1px solid var(--spc-line);border-radius:8px;color:var(--spc-text);}
.spc-pagination-list a:hover{border-color:var(--spc-cyan);}
.spc-page-active a{background:var(--spc-orange);color:#0B0A1E;border-color:var(--spc-orange);font-weight:700;}

/* ===== 页面（about 等） ===== */
.spc-page-wrap{padding:14px 0 50px;}
.spc-page-main{max-width:820px;margin:0 auto;}
.spc-page-main h1{font-size:30px;margin:6px 0 18px;}
.spc-page-main h2{font-size:22px;margin:32px 0 12px;padding-left:12px;border-left:4px solid var(--spc-cyan);}
.spc-page-main h3{font-size:18px;margin:22px 0 8px;color:var(--spc-orange);}

/* ===== 首页 ===== */
.spc-hero{position:relative;overflow:hidden;padding:64px 0 56px;border-bottom:1px solid var(--spc-line);}
.spc-hero-inner{max-width:var(--spc-container);margin:0 auto;padding:0 24px;position:relative;z-index:2;}
.spc-hero-kicker{color:var(--spc-cyan);letter-spacing:2px;font-size:13px;text-transform:uppercase;margin:0 0 14px;}
.spc-hero-title{font-size:38px;line-height:1.25;margin:0 0 18px;max-width:840px;}
.spc-hero-sub{color:var(--spc-text-dim);font-size:17px;max-width:760px;margin:0 0 26px;}
.spc-hero-cta{display:flex;gap:14px;flex-wrap:wrap;}
.spc-hero-glow{position:absolute;top:-160px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.28),rgba(91,140,255,.12) 45%,transparent 70%);z-index:1;}
.spc-btn{display:inline-block;padding:12px 22px;border-radius:999px;font-weight:600;font-size:15px;}
.spc-btn-primary{background:linear-gradient(135deg,var(--spc-orange),#FF6A3D);color:#0B0A1E;}
.spc-btn-primary:hover{color:#0B0A1E;filter:brightness(1.08);}
.spc-btn-ghost{border:1px solid var(--spc-line);color:#EAF0FB;background:var(--spc-bg-2);}
.spc-btn-ghost:hover{border-color:var(--spc-cyan);}
.spc-block{max-width:var(--spc-container);margin:0 auto;padding:46px 24px;}
.spc-block-alt{background:var(--spc-bg-2);border-top:1px solid var(--spc-line);border-bottom:1px solid var(--spc-line);}
.spc-block-h{font-size:24px;margin:0 0 22px;color:#EAF0FB;}
.spc-grid{display:grid;gap:18px;}
.spc-grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.spc-tile{background:var(--spc-bg-2);border:1px solid var(--spc-line);border-radius:14px;padding:20px;transition:border-color .15s,transform .15s;}
.spc-tile:hover{border-color:var(--spc-orange);transform:translateY(-3px);}
.spc-tile-soft{background:transparent;}
.spc-tile-h{font-size:18px;margin:0 0 10px;color:var(--spc-cyan);}
.spc-tile-p{color:var(--spc-text-dim);font-size:14.5px;margin:0;}
.spc-tagrow{list-style:none;display:flex;flex-wrap:wrap;gap:10px;padding:0;margin:0;}
.spc-tag{background:var(--spc-bg-3);border:1px solid var(--spc-line);border-radius:999px;padding:8px 16px;font-size:14px;color:var(--spc-text);}
.spc-baseline{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;padding:0;margin:0;}
.spc-baseline-item{background:var(--spc-bg-2);border:1px solid var(--spc-line);border-left:3px solid var(--spc-blue);border-radius:10px;padding:14px 16px;color:var(--spc-text);}

/* ===== 归档 ===== */
.spc-archive-h{font-size:30px;margin:6px 0 8px;}
.spc-archive-intro{color:var(--spc-text-dim);margin:0 0 24px;}
.spc-archive-cat{font-size:18px;color:var(--spc-cyan);margin:22px 0 10px;}
.spc-archive-list{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 22px;padding:0;margin:0 0 10px;}
.spc-archive-list a{color:var(--spc-text);}
.spc-archive-list a:hover{color:var(--spc-cyan);}

/* ===== 404 ===== */
.spc-404{text-align:center;padding:60px 0;}
.spc-404-h{font-size:64px;color:var(--spc-orange);margin:0 0 10px;}

/* ===== 悬浮胶囊 ===== */
.spc-float{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:60;
  display:flex;flex-direction:column;gap:12px;}
.spc-float-btn{display:flex;flex-direction:column;align-items:center;gap:3px;cursor:pointer;
  background:linear-gradient(135deg,var(--spc-orange),#FF6A3D);color:#0B0A1E;border:0;
  border-radius:999px;padding:11px 13px;min-width:58px;box-shadow:0 8px 22px rgba(255,138,61,.35);font-weight:700;}
.spc-float-btn:hover{filter:brightness(1.08);}
.spc-float-ico{font-size:18px;line-height:1;}
.spc-float-txt{font-size:12px;}
.spc-card-overlay{position:fixed;inset:0;background:rgba(6,5,16,.72);z-index:90;display:flex;align-items:center;justify-content:center;}
.spc-card-overlay[hidden]{display:none;}
.spc-card-box{position:relative;background:#fff;border-radius:12px;padding:8px;}
.spc-card-img{display:block;width:300px;height:500px;object-fit:contain;}
.spc-card-close{position:absolute;top:-14px;right:-14px;width:34px;height:34px;border-radius:50%;border:0;background:var(--spc-bg-2);color:#EAF0FB;font-size:20px;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.4);}

/* ===== 页脚 ===== */
.spc-footer{background:var(--spc-bg-2);border-top:1px solid var(--spc-line);margin-top:40px;}
.spc-footer-inner{max-width:var(--spc-container);margin:0 auto;padding:40px 24px 26px;}
.spc-footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.spc-footer-h{font-size:15px;color:var(--spc-cyan);margin:0 0 12px;}
.spc-footer-col ul{list-style:none;margin:0;padding:0;}
.spc-footer-col li{margin:8px 0;font-size:14px;}
.spc-footer-col a{color:var(--spc-text-dim);}
.spc-footer-col a:hover{color:var(--spc-cyan);}
.spc-footer-mail{cursor:pointer;color:var(--spc-cyan);}
.spc-footer-bottom{border-top:1px solid var(--spc-line);margin-top:26px;padding-top:18px;color:var(--spc-text-dim);font-size:13px;text-align:center;}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .spc-layout-grid,.spc-list-layout .spc-layout-grid{grid-template-columns:1fr;gap:20px;}
  .spc-toc-aside{position:static;max-height:none;}
  .spc-grid-3{grid-template-columns:1fr;}
  .spc-card-list,.spc-card-list-2,.spc-baseline,.spc-archive-list{grid-template-columns:1fr;}
  .spc-nav-toggle{display:flex;}
  .spc-nav{display:none;}
  .spc-nav-list{flex-direction:column;}
  .spc-hero-title{font-size:28px;}
}
@media (max-width:640px){
  .spc-footer-cols{grid-template-columns:1fr;}
  .spc-float{right:10px;}
  .spc-card-img{width:240px;height:400px;}
}