:root{--ink: #17324d;--teal: #087f8c;--teal-dark: #066a76;--yellow: #ffd166;--coral: #f2765b;--paper: #ffffff;--cream: #fff8e7;--gray: #d8e2e8;--gray-light: #f0f4f7;--shadow: 0 2px 12px rgba(23, 50, 77, .1);--shadow-lg: 0 8px 32px rgba(23, 50, 77, .15);--radius: 22px;--radius-sm: 14px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,Microsoft YaHei,PingFang SC,sans-serif;color:var(--ink);background:var(--cream);line-height:1.6;-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer;border:none;min-height:48px;border-radius:var(--radius-sm);font-weight:700;font-size:1rem;transition:all .2s}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--teal);color:#fff;padding:12px 28px}.btn-primary:hover:not(:disabled){background:var(--teal-dark)}.btn-secondary{background:var(--paper);color:var(--ink);border:2px solid var(--ink);padding:10px 24px}.btn-secondary:hover:not(:disabled){background:var(--gray-light)}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}