:root{--navy:#071f3a;--blue:#0664c8;--cyan:#65d7ff;--gold:#f2cf24;--ink:#10233e;--muted:#667892;--line:#dbe6f1;--paper:#f3f7fb}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Microsoft YaHei",Arial,sans-serif;line-height:1.75}
a{color:var(--blue)}
.knowledge-header{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px max(24px,calc((100% - 1180px)/2));background:#fff;border-bottom:1px solid var(--line)}
.knowledge-header img{display:block;width:138px;height:auto}.knowledge-header nav{display:flex;flex-wrap:wrap;gap:18px}.knowledge-header nav a{color:#29435f;text-decoration:none;font-size:13px;font-weight:700}
.knowledge-main{width:min(1080px,calc(100% - 32px));margin:42px auto 72px}.knowledge-breadcrumb{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;color:var(--muted);font-size:12px}.knowledge-breadcrumb a{text-decoration:none}
.knowledge-article,.brand-guide{overflow:hidden;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 24px 70px rgba(8,37,69,.10)}
.knowledge-article>header,.brand-guide>header{padding:48px 7% 34px;background:linear-gradient(135deg,#071f3a,#0a3767);color:#fff}.knowledge-article>header>span{display:inline-flex;padding:5px 11px;border:1px solid #70d4ff55;border-radius:999px;color:#7edcff;font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.12em}.knowledge-article time{margin-left:12px;color:#a9bed6;font-size:12px}.knowledge-article h1,.brand-guide h1{max-width:900px;margin:16px 0 10px;font-size:clamp(30px,5vw,54px);line-height:1.14;letter-spacing:-.035em}.lead{max-width:860px;margin:0;color:inherit;opacity:.82;font-size:17px}
.knowledge-article>figure{margin:0;padding:32px 7%;background:#edf4f9}.knowledge-article>figure img{display:block;width:100%;max-height:620px;object-fit:contain;border-radius:14px;background:#fff}
.article-body,.article-english,.brand-section{padding:36px 10%;font-size:16px}.article-body p,.article-english p{margin:0 0 1.35em}.article-english{border-top:1px solid var(--line);background:#f8fbfe}.article-english h2,.brand-section h2{margin:0 0 16px;font-size:28px;line-height:1.3}
.xpbsun-reference{margin:12px 7% 34px;padding:25px;border:1px solid #8fdcff;border-radius:14px;background:#eaf8ff}.xpbsun-reference b{color:#075eac;letter-spacing:.08em}.xpbsun-reference p{margin:8px 0}.xpbsun-reference a{font-weight:800}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;padding:0 7% 40px}.article-tags span,.keyword-cloud span{padding:6px 10px;border:1px solid #cddceb;border-radius:999px;background:#f5f9fc;color:#31506c;font-size:12px}
.knowledge-footer{display:flex;align-items:center;justify-content:center;gap:18px;padding:28px;background:var(--navy);color:#b9c9d9;text-align:center}.knowledge-footer b{color:#fff}.knowledge-footer a{color:var(--cyan)}
.brand-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center}.brand-mark{display:flex;min-height:230px;align-items:center;justify-content:center;border:1px solid #7edcff55;border-radius:18px;background:linear-gradient(145deg,#0c2e53,#06192e);font-size:clamp(52px,8vw,98px);font-weight:950;letter-spacing:-.08em;color:#fff;text-shadow:0 0 35px #1c9fff66}.brand-mark span{color:var(--gold)}
.brand-guide>header{padding:44px 6%}.brand-section{border-top:1px solid var(--line)}.brand-section.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.brand-card{padding:22px;border:1px solid var(--line);border-radius:14px;background:#f8fbfe}.brand-card h2{font-size:20px}.brand-card p{margin:0;color:var(--muted)}
.product-links{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.product-links a{display:block;padding:16px;border:1px solid var(--line);border-radius:12px;text-decoration:none;font-weight:800}.product-links a:hover{border-color:#7bc7ff;background:#eff8ff}.keyword-cloud{display:flex;flex-wrap:wrap;gap:8px}
.localized-aeo-summary{margin:0 0 22px;padding:22px 25px;display:grid;grid-template-columns:1.4fr .8fr;gap:20px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(135deg,#f8fbfe,#edf7ff)}.localized-aeo-summary span{display:block;color:var(--blue);font-size:11px;font-weight:900;letter-spacing:.12em}.localized-aeo-summary h2{margin:6px 0 8px;font-size:28px}.localized-aeo-summary p{margin:0;color:var(--muted);line-height:1.6}.localized-aeo-summary ul{display:flex;flex-wrap:wrap;align-content:center;gap:7px;margin:0;padding:0;list-style:none}.localized-aeo-summary li{padding:6px 9px;border:1px solid #cbddec;border-radius:999px;background:#fff;font-size:11px}
@media(max-width:760px){.knowledge-header{position:static;align-items:flex-start;flex-direction:column}.knowledge-header nav{gap:10px 14px}.knowledge-main{margin-top:22px}.knowledge-article>header,.brand-guide>header{padding:32px 24px 26px}.knowledge-article>figure,.article-body,.article-english,.brand-section{padding:24px}.brand-hero-grid,.brand-section.grid,.product-links,.localized-aeo-summary{grid-template-columns:1fr}.localized-aeo-summary{padding:18px}.brand-mark{min-height:170px}.knowledge-footer{flex-direction:column;gap:4px}}