* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: radial-gradient(circle at 20% 10%, #101826 0, #090c12 45%);
  color: #f5f7fb;
}

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: #11151d;
  border: 1px solid #232a35;
  border-radius: 16px;
  padding: 24px;
}

.auth-brand-logo {
  display: block;
  width: 72px;
  height: 72px;
  margin: 0 auto 14px;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

.auth-lang {
  margin: 0 0 10px;
  text-align: right;
  font-size: 13px;
}

.auth-lang a {
  color: #9bd0ff;
  text-decoration: none;
}

.auth-lang a:hover {
  text-decoration: underline;
}

.auth-card h1 {
  margin: 0 0 6px;
  font-size: 30px;
}

.auth-card p {
  margin: 0 0 18px;
  color: #9aa3b2;
  font-size: 14px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

label {
  font-size: 13px;
  color: #d4d9e2;
}

input {
  width: 100%;
  height: 40px;
  border-radius: 10px;
  border: 1px solid #2a3240;
  background: #171d28;
  color: #e5e9f0;
  padding: 0 10px;
}

button {
  margin-top: 8px;
  height: 42px;
  border: none;
  border-radius: 10px;
  background: #c4ff1f;
  color: #0d1117;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}

.auth-msg {
  margin-top: 12px;
  color: #ff9f9f;
  font-size: 13px;
}

.auth-foot {
  margin-top: 12px;
  color: #b8bfcc;
  font-size: 13px;
}

.auth-foot a {
  color: #9bd0ff;
  text-decoration: none;
}

.auth-sep {
  margin: 0 6px;
  color: #5c6675;
}

/* 与主站 replica 页统一的深色滚动条（登录/注册） */
html {
  scrollbar-width: thin;
  scrollbar-color: rgba(100, 118, 145, 0.92) rgba(255, 255, 255, 0.04);
}

html *::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

html *::-webkit-scrollbar-track {
  margin: 4px 0;
  background: rgba(255, 255, 255, 0.035);
  border-radius: 999px;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

html *::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(100, 118, 145, 0.95), rgba(62, 76, 98, 0.9));
  border-radius: 999px;
  border: 2px solid rgba(13, 17, 24, 0.85);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.06) inset;
}

html *::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(130, 148, 178, 1), rgba(82, 98, 124, 0.95));
}

html *::-webkit-scrollbar-corner {
  background: transparent;
}