@charset "UTF-8";

/* ========== 全局重置与基础 ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Source Sans Pro", "Microsoft YaHei", "微软雅黑", Helvetica, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #ffffff;
  background-image:
    -webkit-linear-gradient(60deg, rgba(255, 165, 150, 0.5) 5%, rgba(0, 228, 255, 0.35)),
    url("../img/bg.jpg");
  background-image:
    -moz-linear-gradient(60deg, rgba(255, 165, 150, 0.5) 5%, rgba(0, 228, 255, 0.35)),
    url("../img/bg.jpg");
  background-image:
    -ms-linear-gradient(60deg, rgba(255, 165, 150, 0.5) 5%, rgba(0, 228, 255, 0.35)),
    url("../img/bg.jpg");
  background-image:
    linear-gradient(60deg, rgba(255, 165, 150, 0.5) 5%, rgba(0, 228, 255, 0.35)),
    url("../img/bg.jpg");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
  background-attachment: fixed;
  padding: 20px;
}

/* ========== 登录容器 ========== */
.login-wrapper {
  width: 100%;
  max-width: 400px;
  animation: fadeInUp 0.8s ease-out;
}

/* ========== 登录卡片 ========== */
.login-card {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 16px;
  padding: 36px 32px 28px;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.1),
    0 2px 8px rgba(163, 154, 229, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.6);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.login-card:hover {
  transform: translateY(-2px);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.12),
    0 4px 12px rgba(163, 154, 229, 0.2);
}

/* ========== 头部区域 ========== */
.login-header {
  text-align: center;
  margin-bottom: 28px;
}

.login-logo {
  margin-bottom: 14px;
  animation: float 3s ease-in-out infinite;
}

.login-logo img {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  border: 3px solid #a39ae5;
  box-shadow: 0 0 0 4px rgba(163, 154, 229, 0.2);
  object-fit: cover;
}

.login-title {
  font-size: 20px;
  font-weight: 600;
  color: #313f47;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.login-subtitle {
  font-size: 12px;
  color: #8e99a4;
  letter-spacing: 0.05em;
}

/* ========== 表单输入框 ========== */
.login-input-group {
  position: relative;
  margin-bottom: 16px;
}

.input-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  color: #a39ae5;
  font-size: 16px;
  transition: color 0.3s ease;
}

.input-icon svg {
  stroke: #a39ae5;
  display: block;
}

.login-input {
  display: block;
  width: 100%;
  height: 44px;
  padding: 0 16px 0 42px;
  border: 1.5px solid #e0e3e8;
  border-radius: 10px;
  font-size: 14px;
  color: #414f57;
  background: rgba(255, 255, 255, 0.7);
  transition: all 0.3s ease;
  letter-spacing: 0.05em;
  box-shadow: none;
  outline: none;
  font-family: inherit;
}

.login-input:focus {
  border-color: #a39ae5;
  background: rgba(255, 255, 255, 1);
  box-shadow: 0 0 0 3px rgba(163, 154, 229, 0.15);
}

.login-input-group:focus-within .input-icon {
  color: #ff7496;
}

.login-input-group:focus-within .input-icon svg {
  stroke: #ff7496;
}

.login-input::placeholder {
  color: #b0b8c1;
  font-size: 13px;
}

/* ========== 记住登录选项 ========== */
.login-options {
  margin-bottom: 20px;
}

.login-remember {
  display: flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.login-remember input[type="checkbox"] {
  display: none;
}

.login-remember .remember-text {
  position: relative;
  padding-left: 24px;
  font-size: 13px;
  color: #8e99a4;
  transition: color 0.2s ease;
}

.login-remember .remember-text::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border: 1.5px solid #d0d5db;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.8);
  transition: all 0.2s ease;
}

.login-remember .remember-text::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 50%;
  transform: translateY(-50%) scale(0);
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: #a39ae5;
  transition: transform 0.2s ease;
}

.login-remember input[type="checkbox"]:checked + .remember-text::before {
  border-color: #a39ae5;
}

.login-remember input[type="checkbox"]:checked + .remember-text::after {
  transform: translateY(-50%) scale(1);
}

.login-remember:hover .remember-text {
  color: #414f57;
}

/* ========== 登录按钮 ========== */
.btn-login {
  display: block;
  width: 100%;
  height: 44px;
  line-height: 44px;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: #ffffff;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  background: linear-gradient(135deg, #a39ae5 0%, #8b7fd4 50%, #7b6ec8 100%);
  box-shadow: 0 4px 15px rgba(163, 154, 229, 0.35);
  transition: all 0.3s ease;
  font-family: inherit;
}

.btn-login:hover {
  background: linear-gradient(135deg, #b3aaef 0%, #9b8fe4 50%, #8b7ed8 100%);
  box-shadow: 0 6px 20px rgba(163, 154, 229, 0.45);
  transform: translateY(-1px);
  color: #ffffff;
}

.btn-login:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px rgba(163, 154, 229, 0.3);
}

.btn-disabled {
  background: #c8cccf !important;
  box-shadow: none !important;
  cursor: not-allowed !important;
}

.btn-disabled:hover {
  transform: none !important;
  background: #c8cccf !important;
  box-shadow: none !important;
}

/* ========== 错误提示 ========== */
.login-error {
  text-align: center;
  margin-top: 16px;
  padding: 8px 12px;
  background: rgba(255, 235, 238, 0.8);
  border-radius: 8px;
  font-size: 12px;
}

/* ========== 底部返回首页 ========== */
.login-footer {
  text-align: center;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(200, 204, 207, 0.4);
}

.back-home {
  font-size: 13px;
  color: #8e99a4;
  text-decoration: none;
  transition: color 0.2s ease;
  letter-spacing: 0.05em;
}

.back-home:hover {
  color: #a39ae5;
  text-decoration: none;
}

/* ========== 响应式适配 ========== */
@media screen and (max-width: 480px) {
  body {
    padding: 16px;
    align-items: flex-start;
    padding-top: 40px;
  }

  .login-card {
    padding: 28px 20px 22px;
    border-radius: 12px;
  }

  .login-logo img {
    width: 64px;
    height: 64px;
  }

  .login-title {
    font-size: 18px;
  }

  .login-input {
    height: 42px;
    font-size: 13px;
  }

  .btn-login {
    height: 42px;
    line-height: 42px;
    font-size: 14px;
  }
}