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

body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  overflow: hidden;
  background: #f5f5f5;
}

/* 主布局 */
.login-page {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
}

/* ============ 左侧角色区域 ============ */
.characters-section {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: #ffffff;
  padding: 3rem;
  color: #1a1a1a;
  overflow: hidden;
}

/* 装饰性背景 */
.characters-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: 
    repeating-linear-gradient(0deg, transparent, transparent 20px, rgba(0,0,0,0.02) 20px, rgba(0,0,0,0.02) 21px);
  pointer-events: none;
}

.characters-section::after {
  content: "";
  position: absolute;
  top: 25%;
  right: 25%;
  width: 400px;
  height: 400px;
  background: rgba(108, 63, 245, 0.05);
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

/* Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.125rem;
  font-weight: 600;
  z-index: 20;
}

.logo-icon {
  width: 2rem;
  height: 2rem;
  object-fit: contain;
}

/* 角色容器 */
.characters-container {
  position: relative;
  width: 550px;
  height: 400px;
  margin: 0 auto;
  z-index: 10;
}

/* 角色基础样式 */
.character {
  position: absolute;
  bottom: 0;
  transition: transform 0.3s ease-out, height 0.7s ease-in-out;
  transform-origin: bottom center;
  will-change: transform, height;
}

/* 紫色角色 */
.character.purple {
  left: 70px;
  width: 180px;
  height: 400px;
  background: #6C3FF5;
  border-radius: 10px 10px 0 0;
  z-index: 1;
}


/* 黑色角色 */
.character.black {
  left: 240px;
  width: 120px;
  height: 310px;
  background: #2D2D2D;
  border-radius: 8px 8px 0 0;
  z-index: 2;
}

.character.black.shy {
  transform: skewX(0deg);
}

.character.black.looking-away {
  transform: skewX(0deg);
}

/* 橙色角色 */
.character.orange {
  left: 0;
  width: 240px;
  height: 200px;
  background: #FF9B6B;
  border-radius: 120px 120px 0 0;
  z-index: 3;
}

.character.orange.looking-away {
  transform: skewX(0deg);
}

/* 黄色角色 */
.character.yellow {
  left: 310px;
  width: 140px;
  height: 230px;
  background: #E8D754;
  border-radius: 70px 70px 0 0;
  z-index: 4;
}

.character.yellow.looking-away {
  transform: skewX(0deg);
}

/* 眼睛容器 */
.eyes {
  position: absolute;
  display: flex;
  gap: 2rem;
  transition: all 0.7s ease;
}

.character.purple .eyes {
  left: 45px;
  top: 40px;
  gap: 2rem;
}

.character.black .eyes {
  left: 26px;
  top: 32px;
  gap: 1.5rem;
}

/* 眼睛 */
.eye {
  width: 18px;
  height: 18px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: height 0.15s ease;
}

.character.black .eye {
  width: 16px;
  height: 16px;
}

/* 瞳孔 */
.pupil {
  width: 7px;
  height: 7px;
  background: #2D2D2D;
  border-radius: 50%;
  transition: transform 0.1s ease-out;
}

.character.black .pupil {
  width: 6px;
  height: 6px;
}

/* 简单瞳孔（橙色和黄色角色） */
.eyes-simple {
  position: absolute;
  display: flex;
  gap: 2rem;
  transition: all 0.2s ease-out;
}

.character.orange .eyes-simple {
  left: 82px;
  top: 90px;
  gap: 2rem;
}

.character.yellow .eyes-simple {
  left: 52px;
  top: 40px;
  gap: 1.5rem;
}

.pupil-simple {
  width: 12px;
  height: 12px;
  background: #2D2D2D;
  border-radius: 50%;
  transition: transform 0.2s ease-out;
}

/* 嘴巴（黄色角色） */
.mouth {
  position: absolute;
  left: 40px;
  top: 88px;
  width: 80px;
  height: 4px;
  background: #2D2D2D;
  border-radius: 2px;
  transition: all 0.2s ease-out;
}

/* 底部链接 */
.footer-links {
  display: flex;
  gap: 2rem;
  font-size: 0.875rem;
  color: rgba(0, 0, 0, 0.5);
  z-index: 20;
}

.footer-links a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: rgba(0, 0, 0, 0.8);
}

/* ============ 右侧登录区域 ============ */
.login-section {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: #000000;
}

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

.login-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.login-header h1 {
  font-size: 1.875rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.5rem;
}

.login-header p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
}

/* 表单样式 */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
}

.form-input {
  height: 3rem;
  padding: 0 1rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.5rem;
  font-size: 1rem;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
  width: 100%;
}

.form-input:focus {
  outline: none;
  border-color: #6C3FF5;
  box-shadow: 0 0 0 3px rgba(108, 63, 245, 0.2);
  background: rgba(255, 255, 255, 0.08);
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

/* 密码输入框包装器 */
.password-wrapper {
  position: relative;
  width: 100%;
}

.password-wrapper .form-input {
  padding-right: 3rem;
}

.password-toggle {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.password-toggle:hover {
  color: rgba(255, 255, 255, 0.9);
}

.eye-icon {
  width: 20px;
  height: 20px;
}

/* 验证码组 */
.captcha-group {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.75rem;
  align-items: end;
}

.captcha-input-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.captcha-input-wrapper label {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
}

.captcha-input-wrapper .form-input {
  width: 100%;
}

.captcha-image-wrapper {
  width: 110px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.5rem;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0.05);
  flex-shrink: 0;
}

.captcha-image-wrapper:hover {
  border-color: #6C3FF5;
  transform: scale(1.02);
}

.captcha-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* 错误消息 */
.error-message {
  padding: 0.75rem 1rem;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 0.5rem;
  color: #dc2626;
  font-size: 0.875rem;
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

/* 登录按钮 */
.login-button {
  height: 3rem;
  padding: 0 2rem;
  background: linear-gradient(135deg, #6C3FF5 0%, #5a32d9 100%);
  color: white;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.login-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.login-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(108, 63, 245, 0.3);
}

.login-button:hover::before {
  left: 100%;
}

.login-button:active {
  transform: translateY(0);
}

.login-button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

/* 加载动画 */
.btn-loader {
  display: flex;
  gap: 0.375rem;
  justify-content: center;
  align-items: center;
}

.btn-loader .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ffffff;
  animation: bounce 0.9s ease infinite;
}

.btn-loader .dot:nth-child(2) {
  animation-delay: 0.15s;
}

.btn-loader .dot:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.7;
  }
  50% {
    transform: translateY(-8px);
    opacity: 1;
  }
}

/* 表单底部 */
.form-footer {
  text-align: center;
  margin-top: 1rem;
}

.copyright {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .login-page {
    grid-template-columns: 1fr;
  }
  
  .characters-section {
    display: none;
  }
  
  .login-section {
    min-height: 100vh;
  }
}

@media (max-width: 480px) {
  .login-section {
    padding: 1.5rem;
  }
  
  .login-container {
    max-width: 100%;
  }
  
  .login-header h1 {
    font-size: 1.5rem;
  }
  
  .form-input,
  .login-button {
    height: 2.75rem;
    font-size: 0.9375rem;
  }
}