:root{--ink:#18181b;--soft:#3f3f46;--muted:#71717a;--line:#e4e4e7;--bg:#fafafa;--card:#fff;--red:#be123c;--cyan:#0891b2;--cream:#fff7ed;--radius:8px;--shadow:0 18px 48px rgba(24,24,27,.1);--font:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.68}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}.container{width:min(100% - 32px,1200px);margin:0 auto}.skip-link{position:absolute;left:12px;top:-60px;background:var(--ink);color:#fff;border-radius:6px;padding:8px 12px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:80;background:rgba(250,250,250,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.nav-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:950}.brand img{width:42px;height:42px;border-radius:8px;object-fit:cover}.brand span{white-space:nowrap}.nav-links{display:flex;align-items:center;gap:4px;margin:0;padding:0;list-style:none}.nav-links a{display:inline-flex;align-items:center;min-height:40px;padding:8px 13px;border-radius:6px;color:var(--soft);font-weight:850}.nav-links a:hover{background:#ffe4e6;color:var(--red)}.nav-search{display:flex;width:260px;border:1px solid var(--line);border-radius:6px;background:#fff;overflow:hidden}.nav-search input{width:100%;min-width:0;border:0;padding:10px 12px;outline:0}.nav-search button,.primary-button,.secondary-button,.submit-button{border:0;border-radius:6px;min-height:42px;padding:9px 16px;background:var(--red);color:#fff;font-weight:900;cursor:pointer}.secondary-button{background:#fff;color:var(--red);border:1px solid #fecdd3}.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:6px;background:#fff}.menu-toggle 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