/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    min-height: 100vh;
    color: #fff;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
}

.hidden {
    display: none !important;
}

/* 认证页面 */
.auth-box {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    max-width: 400px;
    margin: 100px auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.auth-box h1 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 24px;
    background: linear-gradient(45deg, #00d2ff, #3a7bd5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tabs {
    display: flex;
    margin-bottom: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    padding: 5px;
}

.tab-btn {
    flex: 1;
    padding: 10px;
    border: none;
    background: transparent;
    color: #888;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s;
}

.tab-btn.active {
    background: linear-gradient(45deg, #00d2ff, #3a7bd5);
    color: #fff;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-group input {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 16px;
}

.form-group input::placeholder {
    color: #888;
}

.form-group input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.15);
}

.btn-primary {
    padding: 15px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(45deg, #00d2ff, #3a7bd5);
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 210, 255, 0.4);
}

.btn-secondary {
    padding: 10px 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    background: transparent;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* 聊天页面 */
.chat-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 40px);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    overflow: hidden;
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-info #user-name {
    font-weight: bold;
    font-size: 18px;
}

.balance {
    background: rgba(0, 210, 255, 0.2);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.message {
    max-width: 80%;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    align-self: flex-end;
}

.message.bot {
    align-self: flex-start;
}

.message-content {
    padding: 15px 20px;
    border-radius: 15px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
}

.message.user .message-content {
    background: linear-gradient(45deg, #00d2ff, #3a7bd5);
    border-bottom-right-radius: 5px;
}

.message.bot .message-content {
    background: rgba(255, 255, 255, 0.1);
    border-bottom-left-radius: 5px;
}

.chat-input {
    display: flex;
    gap: 10px;
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-input input {
    flex: 1;
    padding: 15px;
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 16px;
}

.chat-input input::placeholder {
    color: #888;
}

.chat-input input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.15);
}

.chat-input .btn-primary {
    padding: 15px 30px;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* 响应式 */
@media (max-width: 600px) {
    .container {
        padding: 10px;
    }

    .auth-box {
        margin: 50px auto;
        padding: 30px 20px;
    }

    .chat-header {
        flex-direction: column;
        gap: 10px;
    }

    .message {
        max-width: 90%;
    }
}