:root{--bg:#f7f7f4;--surface:#fff;--surface-soft:#f0efeb;--text:#191916;--muted:#68645d;--line:#dedbd2;--accent:#d38432;--accent-dark:#92551f;--danger:#b42318;--success:#246b45}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,Microsoft YaHei,sans-serif;letter-spacing:0}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.shell{width:min(1180px,calc(100% - 32px));margin:0 auto}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:20;background:hsla(60,16%,96%,.92);border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.nav{height:68px;justify-content:space-between;gap:20px}.brand,.nav{display:flex;align-items:center}.brand{gap:10px;min-width:0}.brand-logo{width:42px;height:42px;object-fit:contain;flex:0 0 auto}.brand-name{display:flex;flex-direction:column;gap:2px;min-width:0}.brand-name 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video{width:100%;height:100%}.admin-list{display:grid;grid-gap:12px;gap:12px}.admin-item{display:grid;grid-template-columns:180px minmax(0,1fr) auto;grid-gap:14px;gap:14px;align-items:center}.admin-item video{width:180px;aspect-ratio:16/9;background:#111;border-radius:8px}.admin-actions{display:flex;flex-direction:column;gap:8px}@media (max-width:860px){.detail-layout,.hero-grid{grid-template-columns:1fr}.slogan-img{max-width:260px;justify-self:flex-start}h1{font-size:32px}.admin-item,.form-grid,.work-grid{grid-template-columns:1fr}.admin-item video{width:100%}}@media (max-width:560px){.shell{width:min(100% - 20px,1180px)}.nav{height:auto;min-height:64px;padding:10px 0;align-items:flex-start}.brand-name span{display:none}.nav-actions{gap:6px}.button,.ghost-button{min-height:36px;padding:0 10px;font-size:13px}}