/* Project2 unified technical-library shell — 2026-10-27 */
:root{
  --p2-ink:#172033;--p2-muted:#64748b;--p2-line:#e5e7eb;--p2-soft:#f7f9fc;
  --p2-blue:#0f6db5;--p2-blue2:#2563eb;--p2-navy:#0b1b33;--p2-navy2:#0d3155;
  --p2-shadow:0 12px 36px rgba(15,23,42,.10);--p2-radius:16px;
}
html{scroll-behavior:smooth}
body{background:#fff!important;color:var(--p2-ink)!important;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif!important}
body.p2-menu-open{overflow:hidden}
.p2-shell{position:sticky;top:0;z-index:5000;background:rgba(255,255,255,.96);backdrop-filter:blur(18px) saturate(1.35);border-bottom:1px solid var(--p2-line)}
.p2-shell-inner{width:min(1180px,calc(100% - 40px));min-height:72px;margin:0 auto;display:flex;align-items:center;gap:24px}
.p2-brand{display:flex;flex-direction:column;justify-content:center;text-decoration:none!important;white-space:nowrap;line-height:1.15;color:var(--p2-ink)!important;min-width:max-content}
.p2-brand strong{font-size:19px;letter-spacing:.02em;font-weight:800}
.p2-brand small{margin-top:4px;color:var(--p2-muted);font-size:9px;letter-spacing:.16em;font-weight:700}
.p2-nav{margin-left:auto;display:flex;align-items:center;gap:4px;min-width:0}
.p2-nav>a,.p2-nav-button{display:flex;align-items:center;gap:5px;padding:9px 10px;border-radius:10px;text-decoration:none!important;color:#475569!important;font-size:13px;font-weight:600;white-space:nowrap;background:transparent;border:0;cursor:pointer;font-family:inherit}
.p2-nav>a:hover,.p2-nav-button:hover,.p2-nav-item.is-active>.p2-nav-button{color:var(--p2-blue)!important;background:#f3f7fb}
.p2-nav-item{position:relative}
.p2-caret{font-size:9px;opacity:.68;transition:transform .2s}
.p2-nav-item:hover .p2-caret{transform:rotate(180deg)}
.p2-mega{display:none;position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%);width:min(760px,90vw);padding:18px;background:#fff;border:1px solid var(--p2-line);border-radius:16px;box-shadow:var(--p2-shadow);grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.p2-nav-item:hover>.p2-mega,.p2-nav-item:focus-within>.p2-mega{display:grid}
.p2-mega.p2-mega-sm{width:min(520px,90vw);grid-template-columns:repeat(2,minmax(0,1fr))}
.p2-mega-group{min-width:0;padding:10px;border-radius:12px;background:#fbfcfe}
.p2-mega-group>strong{display:block;margin:0 0 7px;color:#0f172a;font-size:12px;letter-spacing:.05em}
.p2-mega-group a{display:block;padding:6px 0;text-decoration:none!important;color:#526071!important;font-size:12.5px;line-height:1.4}
.p2-mega-group a:hover{color:var(--p2-blue)!important}
.p2-service-link{margin-left:4px!important;color:#fff!important;background:linear-gradient(135deg,var(--p2-blue2),#0ea5e9)!important;border-radius:999px!important;padding:9px 14px!important}
.p2-service-link:hover{color:#fff!important;filter:brightness(.97)}
.p2-menu-btn{display:none;margin-left:auto;width:40px;height:40px;border:1px solid var(--p2-line);border-radius:10px;background:#fff;color:var(--p2-ink);font-size:20px;cursor:pointer}
.p2-context{border-bottom:1px solid #edf1f5;background:#fbfcfe}
.p2-context-inner{width:min(1180px,calc(100% - 40px));margin:0 auto;min-height:42px;display:flex;align-items:center;gap:12px;overflow-x:auto;white-space:nowrap;color:var(--p2-muted);font-size:12.5px;scrollbar-width:none}
.p2-context-inner::-webkit-scrollbar{display:none}
.p2-context a{text-decoration:none!important;color:var(--p2-muted)!important}
.p2-context a:hover{color:var(--p2-blue)!important}
.p2-context .p2-current{color:var(--p2-blue);font-weight:700}
.p2-context .p2-sep{color:#c3cbd5}
/* Normalize legacy containers/cards so template changes look intentional without touching content */
body>.hero,body>main .hero,.hero{border-radius:0!important}
.container{box-sizing:border-box}
.card{border-radius:16px!important}
.footer,.p2-footer{background:#f8fafc!important;border-top:1px solid var(--p2-line)!important;color:var(--p2-muted)!important}
.p2-footer{padding:46px 0 24px;margin-top:56px}
.p2-footer-inner{width:min(1180px,calc(100% - 40px));margin:0 auto}
.p2-footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:28px}
.p2-footer h4{margin:0 0 10px;color:var(--p2-ink);font-size:13px;letter-spacing:.08em}
.p2-footer p,.p2-footer a{font-size:13px;line-height:1.75;color:var(--p2-muted)!important;text-decoration:none!important}
.p2-footer-links{display:flex;flex-wrap:wrap;gap:7px 14px}
.p2-footer-bottom{margin-top:26px;padding-top:16px;border-top:1px solid var(--p2-line);text-align:center;color:#8a93a1;font-size:12px}
.p2-footer-bottom a{font-size:12px}
@media(max-width:1080px){
 .p2-shell-inner{min-height:66px}.p2-menu-btn{display:block}.p2-nav{display:none;position:fixed;top:66px;left:0;right:0;bottom:0;margin:0;padding:14px 20px 40px;background:#fff;overflow:auto;align-items:stretch;flex-direction:column;gap:2px}
 body.p2-menu-open .p2-nav{display:flex}.p2-nav>a,.p2-nav-button{width:100%;justify-content:space-between;padding:14px 12px;font-size:15px;border-bottom:1px solid #eef2f6;border-radius:0}
 .p2-nav-item{width:100%}.p2-mega,.p2-mega.p2-mega-sm{display:grid!important;position:static;transform:none;width:100%;box-shadow:none;border:0;border-radius:0;padding:8px 8px 12px;grid-template-columns:1fr 1fr;background:#fafbfd}
 .p2-caret{display:none}.p2-service-link{margin:10px 0 0!important;justify-content:center!important;border:0!important}.p2-brand strong{font-size:17px}
}
@media(max-width:700px){
 .p2-shell-inner,.p2-context-inner,.p2-footer-inner{width:min(100% - 28px,1180px)}
 .p2-mega,.p2-mega.p2-mega-sm{grid-template-columns:1fr}.p2-footer-grid{grid-template-columns:1fr}.p2-footer{padding-top:36px}.p2-brand small{font-size:8px}
}
.p2-nav>a.p2-current{color:var(--p2-blue)!important;background:#f3f7fb}

/* P2 directory hub v2 20261027 */
.p2-directory-hub{margin-top:28px}
.p2-hub-lead{max-width:900px;margin:0 0 24px;color:#526071;font-size:15px;line-height:1.9}
.p2-dir-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:0 0 20px}
.p2-dir-card{border:1px solid #e3e8ef;border-radius:18px;background:#fff;padding:22px;box-shadow:0 8px 24px rgba(15,23,42,.035)}
.p2-dir-card h2{margin:0 0 8px;color:#111827;font-size:18px;line-height:1.35}
.p2-dir-card p{margin:0 0 14px;color:#667085;font-size:13.5px;line-height:1.75}
.p2-dir-links{display:flex;flex-wrap:wrap;gap:8px}
.p2-dir-links a,.p2-dir-links span{display:inline-flex;align-items:center;min-height:32px;padding:6px 10px;border:1px solid #e5eaf0;border-radius:999px;background:#f8fafc;color:#334155!important;text-decoration:none!important;font-size:12.5px;line-height:1.35}
.p2-dir-links a:hover{border-color:#b9cee8;background:#f2f7fc;color:#0b67c2!important}
@media(max-width:760px){.p2-dir-grid{grid-template-columns:1fr}.p2-dir-card{padding:18px}.p2-hub-lead{font-size:14px}}


/* p2-technical-body-v2 */
.p2-tech-body,.p2-related{max-width:1180px;margin:42px auto;padding:0 24px}.p2-tech-body-head,.p2-related-head{max-width:840px;margin-bottom:20px}.p2-tech-body-head>span,.p2-related-head>span{font-size:12px;letter-spacing:.16em;font-weight:800;opacity:.62}.p2-tech-body-head h2,.p2-related-head h2{font-size:clamp(26px,3vw,38px);line-height:1.18;margin:8px 0 10px}.p2-tech-body-head p,.p2-related-head p{font-size:16px;line-height:1.85;opacity:.82}.p2-tech-fact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.p2-tech-fact{border:1px solid rgba(130,145,170,.22);border-radius:16px;padding:18px;background:rgba(127,140,160,.045)}.p2-tech-fact h3{font-size:16px;margin:0 0 8px}.p2-tech-fact p{font-size:14.5px;line-height:1.75;margin:0;opacity:.82}.p2-tech-process{margin-top:20px;border:1px solid rgba(130,145,170,.22);border-radius:18px;padding:20px}.p2-tech-process h3,.p2-search-phrases h3{margin:0 0 12px;font-size:18px}.p2-tech-process ol{list-style:none;padding:0;margin:0;display:grid;gap:10px}.p2-tech-process li{display:flex;gap:12px;align-items:flex-start}.p2-tech-process li span{font-size:12px;font-weight:800;min-width:28px;opacity:.55}.p2-tech-process li p{margin:0;line-height:1.7}.p2-search-phrases{margin-top:20px;border:1px dashed rgba(130,145,170,.3);border-radius:18px;padding:20px}.p2-search-phrases ul{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0 0 12px;padding:0}.p2-search-phrases li{border:1px solid rgba(130,145,170,.22);border-radius:999px;padding:8px 12px;font-size:13px;line-height:1.4}.p2-search-phrases p{margin:0;font-size:13.5px;line-height:1.7;opacity:.72}.p2-related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.p2-related-card{display:flex;flex-direction:column;gap:7px;text-decoration:none;border:1px solid rgba(130,145,170,.22);border-radius:15px;padding:16px;transition:.18s ease}.p2-related-card:hover{transform:translateY(-2px);border-color:rgba(70,115,255,.5)}.p2-related-card b{font-size:15px}.p2-related-card span{font-size:13px;line-height:1.6;opacity:.7}@media(max-width:760px){.p2-tech-body,.p2-related{padding:0 16px;margin:30px auto}.p2-tech-fact-grid,.p2-related-grid{grid-template-columns:1fr}.p2-tech-body-head h2,.p2-related-head h2{font-size:26px}}

.p2-tech-extra-note{margin-top:16px;padding:14px 16px;border-left:3px solid rgba(70,115,255,.7);background:rgba(70,115,255,.05);border-radius:10px;font-size:14px;line-height:1.75}