:root{--brand: #0b5cd5;--brand-hover: #08429b;--brand-light: #1e88e5;--brand-tint: #f2f6fd;--brand-line: #dce7f8;--gold: #c8973f;--gold-soft: #fff6e3;--silver: #6b82a3;--silver-soft: #f1f5fa;--teal: #00a095;--teal-soft: #e9f9f7;--bg: #ffffff;--bg-soft: #f8fafd;--line: #e4eaf3;--line-soft: #eef2f8;--text: #17202e;--sub: #4a566b;--muted: #8c97a9;--r-sm: 6px;--r-md: 10px;--r-lg: 14px;--shadow-xs: 0 1px 3px rgba(18, 42, 86, .06);--shadow-sm: 0 2px 10px rgba(18, 42, 86, .06);--shadow-md: 0 8px 22px rgba(18, 42, 86, .12);--shadow-lg: 0 12px 32px rgba(11, 92, 213, .28);--t-fast: .15s ease;--t-normal: .24s cubic-bezier(.4, 0, .2, 1);--wrap: 1200px;--song: SimSun, "宋体", "Songti SC", "STSong", "NSimSun", serif;--hei: "Microsoft YaHei", "微软雅黑", "PingFang SC", 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