:root{
  --knowledge-bg:#0a1222;
  --knowledge-panel:#0d1f3c;
  --knowledge-panel-soft:#0f1a2e;
  --knowledge-text:#eaf0f7;
  --knowledge-muted:#aebdd0;
  --knowledge-gold:#e8c97a;
  --knowledge-line:rgba(148,163,184,.22);
}

.draft-original-header{position:sticky;top:0;left:0;right:0;z-index:1000;background:rgba(6,18,38,.85);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.1)}
.draft-original-header .header-inner{max-width:1320px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 48px;height:76px;box-sizing:border-box}
.draft-original-header .logo{display:flex;align-items:center;gap:12px;text-decoration:none;flex:0 0 auto}
.draft-original-header .logo img{height:36px;width:auto;object-fit:contain;background:#fff;border-radius:5px;padding:3px 5px;box-shadow:0 1px 4px rgba(0,0,0,.15);box-sizing:border-box}
.draft-original-header .logo-text{font-size:16px;font-weight:700;color:#e8c97a;letter-spacing:1.5px;line-height:1.3;display:flex;flex-direction:column}
.draft-original-header .logo-text .zh{font-size:16px}.draft-original-header .logo-text .en{font-size:11px;font-weight:500;color:#c8a45c;letter-spacing:2px}
.draft-original-header .nav{display:flex;gap:4px;align-items:center}.draft-original-header .nav a{padding:8px 14px;font-size:14px;color:rgba(255,255,255,.6);border-radius:6px;transition:all .25s;text-decoration:none;font-weight:500;letter-spacing:.5px;white-space:nowrap}
.draft-original-header .nav a:hover{color:#fff;background:rgba(255,255,255,.08)}.draft-original-header .nav a.active{color:#e8c97a;background:rgba(232,201,122,.08)}
.draft-original-header .menu-toggle{display:none;background:none;border:0;color:#fff;font-size:24px;cursor:pointer}

.knowledge-intro{max-width:880px;margin-top:0;color:#c7d2df;font-size:17px;line-height:1.9}
.knowledge-toolbar{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 30px}
.knowledge-filter{min-height:40px;padding:8px 16px;border:1px solid rgba(232,201,122,.3);border-radius:999px;background:transparent;color:var(--knowledge-gold);font:inherit;cursor:pointer}
.knowledge-filter:hover,.knowledge-filter.is-active{border-color:var(--knowledge-gold);background:rgba(232,201,122,.12)}
.knowledge-list{display:grid;gap:16px}
.knowledge-card{display:grid;grid-template-columns:190px minmax(0,1fr);gap:24px;align-items:start;padding:24px;border:1px solid var(--knowledge-line);border-radius:14px;background:linear-gradient(145deg,#0f1a2e,#0d1f3c)}
.knowledge-card-meta{display:grid;gap:8px;color:var(--knowledge-muted);font-size:13px}
.knowledge-card-tag{width:max-content;padding:4px 10px;border-radius:999px;background:rgba(232,201,122,.09);color:var(--knowledge-gold)}
.knowledge-card h2{margin:0 0 10px;font-size:22px;line-height:1.45}.knowledge-card h2 a{color:var(--knowledge-text);text-decoration:none}.knowledge-card h2 a:hover{color:var(--knowledge-gold)}
.knowledge-card p{margin:0 0 14px;color:#c7d2df;font-size:15px;line-height:1.8}
.knowledge-card-link{color:var(--knowledge-gold);text-decoration:none;font-size:14px}
.knowledge-card[data-hidden="true"]{display:none}
.knowledge-empty{display:none;padding:26px;border:1px dashed rgba(232,201,122,.3);border-radius:12px;color:var(--knowledge-muted);text-align:center;background:rgba(13,27,46,.55)}
.knowledge-empty.is-visible{display:block}
.knowledge-faq-callout{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;padding:26px 28px;border:1px solid rgba(232,201,122,.38);border-radius:14px;background:linear-gradient(135deg,#0f1a2e,#0d1f3c)}
.knowledge-faq-callout h2{margin:0 0 6px;font-size:24px}.knowledge-faq-callout p{margin:0;color:var(--knowledge-muted)}
.knowledge-action{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:9px 18px;border:1px solid var(--knowledge-gold);border-radius:8px;color:var(--knowledge-gold);text-decoration:none;white-space:nowrap}
.knowledge-action:hover{background:rgba(232,201,122,.12)}

.article-shell{display:grid;grid-template-columns:minmax(0,860px) 250px;gap:54px;align-items:start;max-width:1160px;margin:0 auto}
.article-main{min-width:0}.article-main h1{margin:0 0 18px;font-size:clamp(31px,4vw,46px);line-height:1.3}
.article-kicker{margin:0 0 10px;color:var(--knowledge-gold);font-size:14px;font-weight:700;letter-spacing:.08em}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-bottom:26px;color:var(--knowledge-muted);font-size:13px}
.article-answer{margin:0 0 34px;padding:22px 24px;border-left:3px solid var(--knowledge-gold);border-radius:0 12px 12px 0;background:linear-gradient(135deg,#0f1a2e,#0d1f3c);color:var(--knowledge-text);font-size:17px;line-height:1.85}
.article-content{color:#cbd5e1;font-size:16px;line-height:1.95}.article-content h2{scroll-margin-top:100px;margin:46px 0 16px;color:var(--knowledge-text);font-size:29px;line-height:1.4}.article-content h3{scroll-margin-top:100px;margin:34px 0 12px;color:var(--knowledge-gold);font-size:21px}.article-content p{margin:0 0 18px}.article-content ul,.article-content ol{margin:0 0 22px;padding-left:1.45em}.article-content li{margin:7px 0}.article-content a{color:var(--knowledge-gold)}.article-content code{padding:2px 6px;border-radius:4px;background:#13243a;color:#f4d991}.article-content hr{margin:42px 0;border:0;border-top:1px solid var(--knowledge-line)}
.article-toc{position:sticky;top:104px;padding:20px;border:1px solid var(--knowledge-line);border-radius:12px;background:linear-gradient(145deg,#0f1a2e,#0d1f3c)}.article-toc h2{margin:0 0 12px;font-size:16px}.article-toc a{display:block;padding:6px 0;color:var(--knowledge-muted);font-size:13px;line-height:1.5;text-decoration:none}.article-toc a:hover{color:var(--knowledge-gold)}
.article-related{margin-top:44px;padding-top:26px;border-top:1px solid var(--knowledge-line)}
.article-status{display:inline-flex;padding:4px 9px;border:1px solid rgba(232,201,122,.32);border-radius:999px;color:var(--knowledge-gold);font-size:12px}

.home-v6-knowledge-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;max-width:1100px;margin:0 auto}
.home-v6-knowledge-card{display:flex;flex-direction:column;min-height:230px;padding:24px;border:1px solid rgba(148,163,184,.22);border-radius:12px;background:linear-gradient(145deg,#0f1a2e,#0d1f3c)}
.home-v6-knowledge-card .tag{margin-bottom:12px;color:#e8c97a;font-size:13px}.home-v6-knowledge-card h3{margin:0 0 12px;color:#f2f5fa;font-size:19px;line-height:1.55}.home-v6-knowledge-card p{margin:0 0 18px;color:#aebdd0;font-size:14px;line-height:1.75}.home-v6-knowledge-card a{margin-top:auto;color:#e8c97a;text-decoration:none;font-size:14px}

@media(max-width:1120px){.draft-original-header .header-inner{padding:0 24px}.draft-original-header .nav a{padding:8px 8px;font-size:13px}.article-shell{grid-template-columns:minmax(0,1fr) 220px;gap:34px}}
@media(max-width:900px){.draft-original-header .header-inner{padding:0 20px}.draft-original-header .nav{display:none;position:absolute;top:76px;left:0;right:0;padding:12px 20px;flex-wrap:wrap;background:rgba(6,18,38,.98);border-bottom:1px solid rgba(255,255,255,.1)}.draft-original-header .nav.open{display:flex}.draft-original-header .menu-toggle{display:block}.article-shell{display:block}.article-toc{position:static;margin-bottom:30px}.home-v6-knowledge-grid{grid-template-columns:1fr}.knowledge-card{grid-template-columns:1fr}.knowledge-card-meta{display:flex;flex-wrap:wrap}.knowledge-faq-callout{grid-template-columns:1fr}}
@media(max-width:600px){.knowledge-card{padding:20px}.article-main h1{font-size:30px}.article-answer{padding:18px;font-size:16px}.article-content{font-size:15px}.article-content h2{font-size:24px}}


/* International knowledge-centre layout */
.knowledge-hero{margin-bottom:42px;padding:38px 42px;border:1px solid rgba(94,161,222,.3);border-radius:20px;background:radial-gradient(circle at 86% 10%,rgba(59,148,220,.2),transparent 34%),linear-gradient(145deg,#102544,#0b1a31)}
.knowledge-hero h1{max-width:860px;margin:0 0 16px;color:var(--knowledge-text);font-size:clamp(34px,5vw,52px);line-height:1.16;letter-spacing:-.025em}
.knowledge-hero .knowledge-intro{max-width:760px;margin:0;color:#c8d5e5;font-size:16px;line-height:1.75}
.knowledge-library{margin-top:0}.knowledge-section-heading{margin-bottom:20px}.knowledge-section-heading .geo-eyebrow{margin-bottom:6px}.knowledge-section-heading h2{margin:0;color:var(--knowledge-text);font-size:28px;line-height:1.3}
.knowledge-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.knowledge-card{display:flex;min-height:270px;flex-direction:column;gap:0;padding:28px;border-color:rgba(94,161,222,.28);border-radius:16px;background:linear-gradient(145deg,rgba(16,37,68,.98),rgba(10,25,47,.98));box-shadow:0 18px 44px rgba(0,0,0,.16)}
.knowledge-card-meta{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:24px}.knowledge-card h2{margin:0 0 12px;font-size:24px;line-height:1.35}.knowledge-card p{margin:0 0 22px;font-size:15px;line-height:1.7}.knowledge-card-link{width:max-content;margin-top:auto;padding-bottom:2px;border-bottom:1px solid rgba(232,201,122,.45);font-weight:600}
.knowledge-faq-callout{margin-top:6px;padding:28px 30px;border-color:rgba(94,161,222,.28);background:linear-gradient(135deg,#102544,#0b1a31)}
.home-v6-knowledge-lead{max-width:620px;margin:12px auto 0;color:#aebdd0;font-size:15px;line-height:1.6}
.home-v6-knowledge-grid{gap:24px}
.home-v6-knowledge-card{min-height:190px;padding:26px 28px;border-color:rgba(94,161,222,.28);border-radius:14px;background:linear-gradient(145deg,rgba(16,37,68,.98),rgba(10,25,47,.98));box-shadow:0 16px 38px rgba(0,0,0,.14)}
.home-v6-knowledge-card .tag{margin-bottom:16px;font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase}.home-v6-knowledge-card h3{margin-bottom:10px;font-size:20px;line-height:1.35}.home-v6-knowledge-card p{margin-bottom:20px;font-size:14px;line-height:1.65}.home-v6-knowledge-card a{width:max-content;padding-bottom:2px;border-bottom:1px solid rgba(232,201,122,.45);font-weight:600}
@media(max-width:900px){.knowledge-list{grid-template-columns:1fr}.knowledge-card{min-height:0}.knowledge-hero{padding:32px}}
@media(max-width:600px){.knowledge-hero{padding:26px 22px;border-radius:16px}.knowledge-hero h1{font-size:34px}.knowledge-card{padding:22px}.knowledge-card-meta{align-items:flex-start;flex-direction:column;margin-bottom:18px}.knowledge-faq-callout{padding:24px}}