* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #f0f4f8; color: #23303f; min-height: 100vh; }
.container { max-width: 960px; margin: 0 auto; padding: 16px; }
.card { background: #fff; border-radius: 14px; padding: 18px;
  box-shadow: 0 2px 10px rgba(30,60,90,.08); margin-bottom: 16px; }
h1 { font-size: 22px; } h2 { font-size: 17px; margin-bottom: 12px; color: #1f4e79; }
.btn { display: inline-block; border: 0; border-radius: 10px; padding: 10px 16px;
  font-size: 15px; cursor: pointer; background: #2e75b6; color: #fff; transition: .15s; }
.btn:hover { filter: brightness(1.1); }
.btn.ghost { background: #e8f0f8; color: #2e75b6; }
.btn.warn { background: #e07b39; }
.btn.small { padding: 6px 10px; font-size: 13px; border-radius: 8px; }
input, select, textarea { border: 1.5px solid #d7e0ea; border-radius: 10px;
  padding: 10px 12px; font-size: 15px; width: 100%; background: #fff; }
input:focus, textarea:focus { outline: none; border-color: #2e75b6; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.muted { color: #7d8da0; font-size: 13px; }
.badge { display: inline-block; background: #e8f0f8; color: #2e75b6;
  border-radius: 999px; padding: 2px 10px; font-size: 12px; font-weight: 600; }
.toast { position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%);
  background: #23303f; color: #fff; padding: 10px 20px; border-radius: 10px;
  font-size: 14px; opacity: 0; pointer-events: none; transition: .3s; z-index: 99; }
.toast.show { opacity: .95; }
.topbar { display: flex; justify-content: space-between; align-items: center;
  padding: 14px 0; flex-wrap: wrap; gap: 8px; }
.progress { background: #e8f0f8; border-radius: 999px; height: 12px; overflow: hidden; }
.progress > div { background: linear-gradient(90deg,#2e75b6,#54b399); height: 100%;
  border-radius: 999px; transition: width .6s; }