/* ========== Reset / Normalize ========== */
*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, h4, h5, h6, p, ul, ol, li, figure, figcaption, blockquote, dl, dd { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { min-height: 100vh; line-height: 1.6; -webkit-font-smoothing: antialiased; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
img, picture, svg, video { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; background: none; border: none; outline: none; }
button { cursor: pointer; }
table { border-collapse: collapse; border-spacing: 0; }
:focus-visible { outline: 2px solid var(--color-primary, #7c5cff); outline-offset: 2px; }

/* 滚动条美化 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: rgba(255,255,255,0.04); }
::-webkit-scrollbar-thumb { background: linear-gradient(180deg, #7c5cff, #ff4ecd); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, #9c7cff, #ff6edd); }