body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: var(--bg-color);
  min-height: 100vh;
  justify-content: center;
  line-height: 1.6;
}

.container {
  width: 100%;
  max-width: 400px;
  margin: 15px;
  background-color: var(--surface-color);
  padding: 30px;
  border-radius: 20px;
  box-sizing: border-box;
  box-shadow: 
    8px 8px 20px var(--shadow-dark),
    -8px -8px 20px var(--shadow-light);
}

.title {
  text-align: center;
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 10px;
}

.subtitle {
  text-align: center;
  color: #7f8c8d;
  margin-bottom: 25px;
  font-size: 16px;
}

.input-group {
  margin-bottom: 25px;
}

input, button, textarea, select {
  padding: 15px 20px;
  margin: 10px 0;
  border-radius: 12px;
  box-sizing: border-box;
  width: 100%;
  font-size: 16px;
}

input, textarea, select {
  background-color: var(--surface-color);
  box-shadow: 
    inset 3px 3px 6px var(--shadow-dark),
    inset -3px -3px 6px var(--shadow-light);
  color: var(--text-color);
}

input:focus, textarea:focus, select:focus {
  box-shadow: 
    inset 1px 1px 3px var(--shadow-dark),
    inset -1px -1px 3px var(--shadow-light);
  outline: none;
}

button {
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 
    4px 4px 8px var(--shadow-dark),
    -4px -4px 8px var(--shadow-light);
}

button:hover {
  box-shadow: 
    6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light);
  transform: translateY(-2px);
}

button:active {
  box-shadow: 
    inset 2px 2px 5px var(--shadow-dark),
    inset -2px -2px 5px var(--shadow-light);
  transform: translateY(0);
}

.error-msg {
  color: var(--danger-color);
  text-align: center;
  margin: 15px 0;
  font-weight: 500;
  padding: 10px;
  border-radius: 10px;
  box-shadow: 1px 1px 3px var(--shadow-dark);
}

.success-msg {
  color: var(--success-color);
  text-align: center;
  margin: 15px 0;
  font-weight: 500;
  padding: 15px;
  border-radius: 12px;
  box-shadow: 
    4px 4px 10px var(--shadow-dark),
    -4px -4px 10px var(--shadow-light);
}

.countdown {
  text-align: center;
  margin: 15px 0;
  padding: 10px;
  border-radius: 10px;
  box-shadow: 1px 1px 3px var(--shadow-dark);
}

.countdown.permanent {
  color: var(--success-color);
  background-color: rgba(46, 204, 113, 0.05);
}

.countdown.expiring {
  color: var(--primary-color);
  background-color: rgba(74, 144, 226, 0.05);
}

.countdown.expired {
  color: var(--danger-color);
  background-color: rgba(231, 76, 60, 0.05);
}

.redirecting {
  text-align: center;
  color: var(--text-color);
  margin-top: 20px;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.success-icon {
  display: inline-block;
  margin-bottom: 10px;
  animation: pulse 2s infinite;
}

/* 卡密领取弹窗样式 */
.card-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.card-modal.active {
    display: flex;
}

.card-content {
    background: var(--surface-color);
    padding: 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 400px;
    text-align: center;
    box-shadow: 
        8px 8px 20px var(--shadow-dark),
        -8px -8px 20px var(--shadow-light);
}

.card-code {
    background: rgba(255,255,255,0.5);
    padding: 15px;
    border-radius: 8px;
    margin: 20px 0;
    word-break: break-all;
    font-family: monospace;
}

/* 帮助文本 */
.help-text {
    margin-top: 25px;
    text-align: center;
    color: #7f8c8d;
}

.help-links {
    margin-top: 15px;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.help-links a {
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.help-links a:hover {
    text-decoration: none;
}

/* 公告弹窗样式 */
.announcement-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.3);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    backdrop-filter: blur(3px);
}

.announcement-modal.active {
    display: flex;
}

.announcement-content {
    background: var(--announcement-bg);
    border: 1px solid var(--announcement-border);
    padding: 25px;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 
        5px 5px 15px rgba(0,0,0,0.1),
        -5px -5px 15px rgba(255,255,255,0.5);
}

.announcement-title {
    text-align: center;
    color: var(--text-color);
    margin-top: 0;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.5);
}

.announcement-body {
    margin: 20px 0;
    line-height: 1.8;
}

.announcement-footer {
    text-align: center;
    padding-top: 10px;
    border-top: 1px solid rgba(255,255,255,0.5);
}

/* 复制按钮样式 */
.copy-btn {
    float: right;
    padding: 4px 8px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    margin-left: 10px;
    transition: background-color 0.3s;
}

.copy-btn:hover {
    background-color: #3498db;
}

.card-code {
    position: relative;
    padding-right: 80px; /* 为复制按钮预留空间 */
}

.card-code .copy-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
}

.copy-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 12px;
    background: var(--surface-color);
    color: var(--text-color);
    font-weight: 500;
    cursor: pointer;
    box-shadow: 5px 5px 10px var(--shadow-dark), 
               -5px -5px 10px var(--shadow-light);
    transition: all 0.2s ease;
    margin: 15px 0;
}

.copy-btn:hover {
    box-shadow: 6px 6px 12px var(--shadow-dark), 
               -6px -6px 12px var(--shadow-light);
}

.copy-btn:active, .copy-btn.copied {
    box-shadow: inset 5px 5px 10px var(--shadow-dark), 
               inset -5px -5px 10px var(--shadow-light);
    color: var(--primary-color);
}

/* 拟态风格关闭按钮 */
.close-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 12px;
    background: var(--surface-color);
    color: var(--text-color);
    cursor: pointer;
    box-shadow: 5px 5px 10px var(--shadow-dark), 
               -5px -5px 10px var(--shadow-light);
    transition: all 0.2s ease;
    margin-top: 10px;
}

.close-btn:hover {
    box-shadow: 6px 6px 12px var(--shadow-dark), 
               -6px -6px 12px var(--shadow-light);
}

.close-btn:active {
    box-shadow: inset 5px 5px 10px var(--shadow-dark), 
               inset -5px -5px 10px var(--shadow-light);
}

/* 拟态风格卡密显示区 */
.card-code {
    background: var(--surface-color);
    padding: 15px;
    border-radius: 12px;
    margin: 20px 0;
    word-break: break-all;
    font-family: monospace;
    box-shadow: inset 5px 5px 10px var(--shadow-dark), 
               inset -5px -5px 10px var(--shadow-light);
}

/* 拟态风格提示框 */
.copy-toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--surface-color);
    color: var(--text-color);
    padding: 12px 24px;
    border-radius: 12px;
    z-index: 9999;
    transition: all 0.3s ease;
    box-shadow: 5px 5px 15px var(--shadow-dark), 
               -5px -5px 15px var(--shadow-light);
}