/*
 * Windows 11 现代简约风格 - 主要使用柔和的磨砂、半透明效果和圆角
 */

:root {
  --primary: #2563eb; /* Microsoft 蓝 */
  --bg-blur: rgba(255, 255, 255, 0.65);
  --bg: #f3f4f6; /* 灰白背景 */
  --radius: 12px;
  --shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: var(--bg);
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  width: 100%;
  max-width: 420px;
  padding: 20px;
}

.card {
  width: 100%;
  background: var(--bg-blur);
  backdrop-filter: blur(14px) saturate(180%);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px 32px;
}

.glass {
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.title {
  font-size: 1.8rem;
  font-weight: 600;
  color: #111;
  margin-bottom: 24px;
  text-align: center;
}

label {
  font-size: 0.9rem;
  color: #333;
}

input {
  width: 100%;
  padding: 12px 14px;
  margin-top: 8px;
  margin-bottom: 24px;
  border-radius: var(--radius);
  border: 1px solid #d1d5db;
  font-size: 1rem;
  outline: none;
  transition: border 0.2s;
}

input:focus {
  border-color: var(--primary);
}

button {
  width: 100%;
  background: var(--primary);
  color: #fff;
  padding: 12px 14px;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}

button:hover {
  background: #1d4ed8;
}

.tip {
  margin-top: 16px;
  font-size: 0.85rem;
  text-align: center;
  color: #555;
}

a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

a:hover {
  text-decoration: underline;
}