:root{
  --phs-bg:#0B1220;
  --phs-bg-2:#0E1A2E;
  --phs-surface:rgba(18,30,48,.72);
  --phs-surface-2:#12203A;
  --phs-cyan:#19E3C7;
  --phs-purple:#7C6CFF;
  --phs-gold:#E8B04B;
  --phs-text:#E6EDF6;
  --phs-muted:#9FB0C3;
  --phs-line:#26344C;
  --phs-border:#2A3B57;
  --h2-inset:16px;
  --phs-radius:14px;
  --phs-header-h:64px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body.phs-body{
  margin:0;background:var(--phs-bg);color:var(--phs-text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
a{color:var(--phs-cyan);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;}

/* ===== Header ===== */
.phs-header{position:fixed;top:0;left:0;right:0;height:var(--phs-header-h);z-index:50;
  background:rgba(11,18,32,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--phs-line);}
.phs-header-inner{max-width:1200px;margin:0 auto;height:100%;padding:0 24px;
  display:flex;align-items:center;gap:18px;}
.phs-logo{font-weight:800;font-size:19px;color:var(--phs-text);letter-spacing:.5px;
  background:linear-gradient(90deg,var(--phs-cyan),var(--phs-purple));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.phs-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.phs-nav-item{position:relative;}
.phs-nav-link,.phs-nav-item>a,.phs-nav-item>span{padding:10px 14px;color:var(--phs-text);font-size:15px;display:inline-block;cursor:pointer;border-radius:8px;}
.phs-nav-item:hover>.phs-nav-link,.phs-nav-item:hover>a{background:var(--phs-surface-2);}
.phs-nav-has-sub{position:relative;}
.phs-nav-sub{position:absolute;top:100%;left:0;min-width:170px;background:var(--phs-bg-2);
  border:1px solid var(--phs-border);border-radius:10px;padding:6px;display:none;flex-direction:column;
  box-shadow:0 18px 40px rgba(0,0,0,.45);}
.phs-nav-has-sub:hover>.phs-nav-sub,.phs-nav-has-sub:focus-within>.phs-nav-sub{display:flex;}
.phs-nav-sub a{padding:9px 12px;border-radius:7px;color:var(--phs-muted);}
.phs-nav-sub a:hover{background:var(--phs-surface-2);color:var(--phs-text);}
.phs-nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--phs-border);
  color:var(--phs-text);font-size:20px;width:42px;height:38px;border-radius:9px;cursor:pointer;}

/* ===== Main / Crumb ===== */
.phs-main{max-width:1200px;margin:0 auto;padding:calc(var(--phs-header-h) + 18px) 24px 70px;}
.phs-crumb{padding:6px 0 4px;}
.phs-crumb-inner{padding-left:var(--h2-inset);font-size:14px;color:var(--phs-muted);}
.phs-crumb-inner a{color:var(--phs-muted);}
.phs-crumb-sep{margin:0 8px;color:var(--phs-line);}
.phs-crumb-cur{color:var(--phs-text);}

/* ===== Layout grids ===== */
.phs-layout-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:40px;align-items:start;}
.phs-list-grid{display:grid;grid-template-columns:240px minmax(0,1fr);gap:36px;align-items:start;}

/* ===== Content typography ===== */
.phs-content-main{padding-left:var(--h2-inset);min-width:0;}
.phs-content-main h1{font-size:30px;line-height:1.3;margin:4px 0 18px;color:#fff;}
.phs-content-main h2{font-size:22px;margin:34px 0 14px;padding-left:0;color:#fff;
  border-left:4px solid var(--phs-cyan);padding-left:12px;}
.phs-content-main h3{font-size:18px;margin:24px 0 10px;color:var(--phs-cyan);}
.phs-content-main p{margin:12px 0;color:var(--phs-text);}
.phs-content-main ul,.phs-content-main ol{margin:12px 0;padding-left:26px;}
.phs-content-main li{margin:7px 0;color:var(--phs-text);}
.phs-content-main blockquote{margin:16px 0;padding:14px 18px;background:var(--phs-surface-2);
  border-left:4px solid var(--phs-gold);border-radius:0 10px 10px 0;color:var(--phs-muted);}
.phs-content-main blockquote p{margin:6px 0;color:var(--phs-text);}
.phs-content-main strong{color:#fff;}
.phs-content-main .tag-text{display:inline-block;background:var(--phs-surface-2);color:var(--phs-muted);
  border:1px solid var(--phs-border);border-radius:20px;padding:2px 11px;font-size:13px;margin:2px 4px 2px 0;}

/* Tables: cover both .phs-spec and bare .phs-content-main table (M26) */
.phs-content-main table,.phs-page-main table,table.phs-spec{
  width:100%;border-collapse:collapse;margin:16px 0;font-size:14.5px;
  border:1px solid #cbd5e1;background:var(--phs-surface);}
.phs-content-main th,.phs-page-main th,table.phs-spec th{
  background:#13294b;color:#fff;text-align:left;padding:10px 12px;border:1px solid #cbd5e1;font-weight:600;}
.phs-content-main td,.phs-page-main td,table.phs-spec td{
  padding:9px 12px;border:1px solid #cbd5e1;color:var(--phs-text);}
.phs-content-main tbody tr:nth-child(even) td,table.phs-spec tbody tr:nth-child(even) td{background:rgba(38,52,76,.45);}

/* time (update) only in article body */
.phs-content-main time{display:inline-block;color:var(--phs-muted);font-size:13px;margin:6px 0 4px;}

/* ===== TOC / Cat panels (native details) ===== */
.phs-toc-aside{position:sticky;top:calc(var(--phs-header-h) + 18px);max-height:calc(100vh - 100px);overflow:auto;}
.phs-toc-panel,.phs-cat-panel{background:var(--phs-surface);border:1px solid var(--phs-border);border-radius:12px;padding:12px 14px;}
.phs-toc-panel summary,.phs-cat-panel summary{cursor:pointer;font-weight:700;color:var(--phs-text);
  list-style:none;padding:2px 0 8px;position:relative;}
.phs-toc-panel summary::-webkit-details-marker{display:none;}
.phs-toc-panel summary::after,.phs-cat-panel summary::after{content:"▾";position:absolute;right:2px;color:var(--phs-cyan);transition:transform .2s;}
.phs-toc-panel[open] summary::after,.phs-cat-panel[open] summary::after{transform:rotate(180deg);}
.phs-toc-list{list-style:none;margin:6px 0 0;padding:0;}
.phs-toc-list li{margin:6px 0;}
.phs-toc-list a{color:var(--phs-muted);font-size:14px;}
.phs-toc-list a:hover{color:var(--phs-cyan);}
.phs-cat-side .phs-category-list{list-style:none;margin:6px 0 0;padding:0;}
.phs-cat-side .phs-category-list a{display:block;padding:9px 10px;border-radius:8px;color:var(--phs-muted);font-size:14.5px;}
.phs-cat-side .phs-category-list a:hover,.phs-cat-side .phs-category-list a.active{background:var(--phs-surface-2);color:var(--phs-cyan);}

/* ===== FAQ (bare details) ===== */
.phs-faq-sec{margin-top:30px;}
.phs-faq-h{font-size:22px;color:#fff;border-left:4px solid var(--phs-purple);padding-left:12px;}
.phs-content-main details{margin:10px 0;background:var(--phs-surface);border:1px solid var(--phs-border);border-radius:10px;padding:0 14px;}
.phs-content-main details summary{cursor:pointer;font-weight:600;color:var(--phs-text);padding:13px 0;list-style:none;position:relative;}
.phs-content-main details summary::-webkit-details-marker{display:none;}
.phs-content-main details summary::after{content:"+";position:absolute;right:0;color:var(--phs-cyan);font-size:18px;}
.phs-content-main details[open] summary::after{content:"−";}
.phs-content-main details p{padding:0 0 12px;color:var(--phs-muted);}

/* ===== Related ===== */
.phs-content-main .phs-related-list{list-style:none;padding:0;}
.phs-content-main .phs-related-list a{color:var(--phs-cyan);}

/* ===== List page items ===== */
.phs-list-title{font-size:26px;color:#fff;margin:0 0 8px;}
.phs-list-desc{color:var(--phs-muted);margin:0 0 18px;}
.phs-item-list{list-style:none;margin:0;padding:0;}
.phs-item{padding:16px 0;border-bottom:1px solid var(--phs-line);}
.phs-item-title{font-size:17px;font-weight:600;color:#fff;}
.phs-item-desc{color:var(--phs-muted);margin:6px 0;font-size:14.5px;}
.phs-item-time{color:var(--phs-muted);font-size:13px;}

/* ===== Page wrap ===== */
.phs-page-wrap{max-width:860px;}
.phs-page-main{padding-left:var(--h2-inset);}
.phs-page-main h1{font-size:30px;color:#fff;margin:0 0 16px;}
.phs-page-main h2{font-size:22px;color:var(--phs-cyan);margin:30px 0 12px;}
.phs-page-main h3{font-size:18px;color:#fff;margin:22px 0 8px;}

/* ===== Footer ===== */
.phs-footer{background:var(--phs-bg-2);border-top:1px solid var(--phs-line);margin-top:40px;}
.phs-footer-inner{max-width:1200px;margin:0 auto;padding:40px 24px 24px;display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px;}
.phs-foot-logo{font-weight:800;font-size:18px;
  background:linear-gradient(90deg,var(--phs-cyan),var(--phs-purple));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.phs-foot-tag{color:var(--phs-muted);font-size:14px;margin:10px 0 0;}
.phs-foot-col{display:flex;flex-direction:column;gap:9px;}
.phs-foot-title{color:#fff;font-weight:700;margin-bottom:4px;}
.phs-foot-col a{color:var(--phs-muted);font-size:14.5px;}
.phs-foot-note{color:var(--phs-muted);font-size:13px;}
.phs-footer-bar{max-width:1200px;margin:0 auto;padding:16px 24px;border-top:1px solid var(--phs-line);
  color:var(--phs-muted);font-size:13px;}

/* ===== Float capsule ===== */
.phs-float{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:60;
  display:flex;flex-direction:column;gap:10px;}
.phs-float-btn{width:54px;height:54px;border-radius:27px;border:1px solid var(--phs-border);
  background:linear-gradient(135deg,var(--phs-cyan),var(--phs-purple));color:#06121f;font-weight:700;
  font-size:18px;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;
  box-shadow:0 10px 26px rgba(25,227,199,.28);line-height:1.05;}
.phs-float-btn span{font-size:10px;font-weight:600;margin-top:1px;}
.phs-float-btn:hover{filter:brightness(1.08);}
.phs-card-overlay{position:fixed;inset:0;background:rgba(4,9,18,.78);z-index:70;display:flex;
  align-items:center;justify-content:center;}
.phs-card-overlay[hidden]{display:none;}
.phs-card-box{position:relative;background:#fff;border-radius:12px;padding:10px;max-height:92vh;}
.phs-card-img{display:block;height:auto;width:auto;max-height:84vh;}
.phs-card-close{position:absolute;top:-14px;right:-14px;width:34px;height:34px;border-radius:50%;
  border:none;background:var(--phs-purple);color:#fff;font-size:20px;cursor:pointer;}

/* ===== Home ===== */
.phs-hero{position:relative;overflow:hidden;background:linear-gradient(160deg,#0c1830,#0b1220 70%);
  border-bottom:1px solid var(--phs-line);}
.phs-hero-bg{position:absolute;inset:0;}
.phs-hero-bg svg{width:100%;height:100%;}
.phs-hero-inner{position:relative;max-width:1200px;margin:0 auto;padding:88px 24px 72px;text-align:center;}
.phs-hero-title{font-size:42px;line-height:1.25;margin:0 0 16px;color:#fff;
  background:linear-gradient(90deg,#fff,var(--phs-cyan));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.phs-hero-sub{font-size:18px;color:var(--phs-muted);max-width:760px;margin:0 auto 26px;}
.phs-hero-cta{display:flex;gap:14px;justify-content:center;}
.phs-btn{display:inline-block;padding:12px 26px;border-radius:30px;border:1px solid var(--phs-border);
  color:var(--phs-text);background:var(--phs-surface);font-weight:600;}
.phs-btn:hover{text-decoration:none;border-color:var(--phs-cyan);}
.phs-btn-primary{background:linear-gradient(135deg,var(--phs-cyan),var(--phs-purple));color:#06121f;border:none;}
.phs-stats{max-width:1200px;margin:0 auto;padding:40px 24px 10px;}
.phs-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.phs-stat{background:var(--phs-surface);border:1px solid var(--phs-border);border-radius:14px;padding:22px;text-align:center;}
.phs-stat-num{font-size:30px;font-weight:800;color:var(--phs-cyan);}
.phs-stat-label{color:var(--phs-muted);font-size:14px;margin-top:6px;}
.phs-section{max-width:1200px;margin:0 auto;padding:42px 24px;}
.phs-section-h{font-size:26px;color:#fff;margin:0 0 22px;border-left:4px solid var(--phs-cyan);padding-left:12px;}
.phs-prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.phs-prod-card{display:block;background:var(--phs-surface);border:1px solid var(--phs-border);border-radius:14px;
  padding:22px;transition:.2s;}
.phs-prod-card:hover{transform:translateY(-3px);border-color:var(--phs-cyan);text-decoration:none;}
.phs-prod-name{font-size:18px;font-weight:700;color:#fff;margin-bottom:8px;}
.phs-prod-desc{color:var(--phs-muted);font-size:14.5px;margin:0;}
.phs-kw-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.phs-kw{background:var(--phs-surface-2);border:1px solid var(--phs-border);border-radius:24px;
  padding:9px 18px;color:var(--phs-cyan);font-size:15px;}
.phs-base-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.phs-base-item{background:var(--phs-surface);border:1px solid var(--phs-border);border-radius:12px;padding:18px;}
.phs-base-term{color:var(--phs-gold);font-weight:700;margin-bottom:8px;}
.phs-base-desc{color:var(--phs-text);font-size:14.5px;margin:0;}
.phs-base-note{margin-top:18px;color:var(--phs-muted);background:var(--phs-surface-2);
  border-left:4px solid var(--phs-gold);padding:12px 16px;border-radius:0 10px 10px 0;}
.phs-app-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.phs-app-card{background:var(--phs-surface);border:1px solid var(--phs-border);border-radius:12px;padding:18px;}
.phs-app-name{color:var(--phs-purple);font-weight:700;margin-bottom:8px;}
.phs-app-desc{color:var(--phs-text);font-size:14px;margin:0;}
.phs-link-list{list-style:none;padding:0;margin:0;columns:2;column-gap:30px;}
.phs-link-list li{padding:9px 0;border-bottom:1px solid var(--phs-line);break-inside:avoid;}
.phs-link-list a{color:var(--phs-cyan);}

/* ===== Archive / 404 ===== */
.phs-archive{max-width:1000px;}
.phs-archive-title{font-size:30px;color:#fff;margin:0 0 18px;}
.phs-archive-sec{margin:24px 0;}
.phs-archive-h{font-size:22px;color:var(--phs-cyan);margin:0 0 10px;}
.phs-archive-cat{font-size:17px;color:var(--phs-gold);margin:16px 0 6px;}
.phs-nf{text-align:center;padding:90px 20px;}
.phs-nf-code{font-size:80px;color:var(--phs-cyan);margin:0;}
.phs-nf-text{color:var(--phs-muted);margin:10px 0 24px;}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .phs-layout-grid,.phs-list-grid{grid-template-columns:1fr;gap:20px;}
  .phs-toc-aside{position:static;max-height:none;}
  .phs-stats-grid{grid-template-columns:repeat(2,1fr);}
  .phs-prod-grid{grid-template-columns:repeat(2,1fr);}
  .phs-base-grid{grid-template-columns:1fr;}
  .phs-app-grid{grid-template-columns:repeat(2,1fr);}
  .phs-link-list{columns:1;}
  .phs-nav-toggle{display:block;}
  .phs-nav{position:absolute;top:var(--phs-header-h);left:0;right:0;flex-direction:column;align-items:stretch;
    background:var(--phs-bg-2);border-bottom:1px solid var(--phs-border);padding:10px 16px;display:none;}
  .phs-nav.open{display:flex;}
  .phs-nav-has-sub .phs-nav-sub{position:static;display:flex;box-shadow:none;border:none;background:none;padding-left:14px;}
  .phs-footer-inner{grid-template-columns:1fr 1fr;}
}
@media (max-width:600px){
  .phs-hero-title{font-size:30px;}
  .phs-stats-grid,.phs-prod-grid,.phs-app-grid{grid-template-columns:1fr;}
  .phs-footer-inner{grid-template-columns:1fr;}
  .phs-float{right:10px;}
  .phs-float-btn{width:48px;height:48px;}
}