/* 基础层：全局重置、CSS 变量与基础排版 */

* { margin: 0; padding: 0; box-sizing: border-box; }

body { font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--bg-grad); min-height: 100vh; color: #e0e0e0; }

#app { min-height: 100vh; }

:root, [data-theme="starry-blue"] { --accent:#2961ff; --accent-hover:#3d72ff; --bg-grad: linear-gradient(135deg,#1a1a2e 0%,#16213e 50%,#0f3460 100%); }

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .3; } }

body { background: radial-gradient(circle at 65% -10%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 34%), var(--canvas); color:var(--text); }

@keyframes alarmBlink { 0%,100% { box-shadow:0 0 0 0 rgba(239,68,68,.55); opacity:1; } 50% { box-shadow:0 0 0 6px rgba(239,68,68,0); opacity:.55; } }