:root{--bg:#090a0e;--panel:#12141a;--line:#292d38;--text:#f4f2ed;--muted:#8d92a0;--dim:#5d6270;--acid:#d9ff68;--blue:#6676ff;--blue2:#8290ff;--red:#ff7474;--green:#83e6a3;--topbar:86px;--progress:286px}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,"SF Pro Display","PingFang SC","Microsoft YaHei",sans-serif}button,input,textarea,select{font:inherit}.app-shell{height:100vh;overflow:hidden;background:radial-gradient(circle at 75% -15%,rgba(102,118,255,.09),transparent 31%),var(--bg)}.topbar{height:var(--topbar);display:flex;align-items:center;gap:30px;padding:0 28px;border-bottom:1px solid #222630;background:rgba(9,10,14,.94);backdrop-filter:blur(15px);position:relative;z-index:5}.brand{height:100%;min-width:220px;color:var(--text);text-decoration:none;display:flex;align-items:center;gap:14px}.brand-mark{width:37px;height:37px;border:1px solid #555c73;display:grid;place-items:center;transform:rotate(45deg)}.brand-mark 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