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

:root {
    --theme-color: #802520;
}

body {
    font-family: "PingFang SC", "苹方-简", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--theme-color);
    color: #333;
    line-height: 1.6;
}

/* 头部 */
.header {
    background-color: var(--theme-color);
    padding: 15px 0 0 0;
    display: flex;
    justify-content: center;
}

.logo-container {
    width: 1000px;
    max-width: 1000px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 15px;
    position: relative;
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.youtube-logo {
    width: 42px;
    height: 30px;
    flex-shrink: 0;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* 主题切换器 */
.theme-switcher {
    margin-left: auto;
    position: relative;
}

.theme-btn {
    background: #f5f5f5;
    border: 1px solid #e0e0e0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.theme-btn:hover {
    background: #e8e8e8;
    transform: scale(1.05);
}

.theme-dropdown {
    display: none;
    position: absolute;
    top: 50px;
    right: 0;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    padding: 6px;
    z-index: 1000;
    width: 35px;
}

.theme-dropdown.show {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.theme-option {
    width: 23px;
    height: 23px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.theme-option:hover {
    transform: scale(1.15);
}

.theme-option.active {
    border-color: #333;
}

.theme-option[data-color="#802520"] {
    background-color: #802520;
}

.theme-option[data-color="#6a4d43"] {
    background-color: #6a4d43;
}

.theme-option[data-color="#70808f"] {
    background-color: #70808f;
}

.theme-option[data-color="#364023"] {
    background-color: #364023;
}

.title {
    color: #333;
    font-size: 24px;
    font-weight: 600;
}

/* 容器 */
.container {
    width: 1000px;
    max-width: 1000px;
    margin: 0 auto;
    padding: 15px 0;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* 卡片 */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    padding: 24px;
    transition: box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.card-header.no-margin {
    margin-bottom: 0;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: #000;
    margin-bottom: 16px;
}

.card-header .card-title {
    margin-bottom: 0;
}

.card-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 按钮 */
.btn-primary {
    background-color: var(--theme-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    opacity: 0.85;
}

.btn-secondary {
    background-color: var(--theme-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    opacity: 0.85;
}

.btn-warning {
    background-color: var(--theme-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-warning:hover {
    opacity: 0.85;
}

.btn-copy {
    background-color: var(--theme-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-copy:hover {
    opacity: 0.85;
}

.btn-submit {
    background-color: var(--theme-color);
    color: white;
    border: none;
    padding: 8.8px 17.6px;
    border-radius: 6px;
    font-size: 15.4px;
    cursor: pointer;
    transition: all 0.3s ease;
    align-self: flex-start;
    box-shadow: 0 2px 8px rgba(128, 37, 32, 0.3);
    font-weight: 500;
}

.btn-submit:hover {
    opacity: 0.85;
    box-shadow: 0 4px 12px rgba(128, 37, 32, 0.4);
    transform: translateY(-1px);
}

.btn-submit:active {
    box-shadow: 0 1px 4px rgba(128, 37, 32, 0.3);
    transform: translateY(0);
}

.btn-config {
    background-color: var(--theme-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-config:hover {
    opacity: 0.85;
}

.btn-collapse {
    background-color: var(--theme-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-collapse:hover {
    opacity: 0.85;
}

/* 折叠状态 */
.card-content.collapsed {
    display: none;
}

/* 确保折叠后的card-header高度一致 */
.card-header.no-margin {
    margin-bottom: 0;
}

/* 文本输入区 */
.script-textarea {
    width: 100%;
    min-height: 120px;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    font-weight: normal;
    resize: vertical;
    transition: border-color 0.3s ease;
}

.script-textarea:focus {
    outline: none;
    border-color: var(--theme-color);
}

/* 输出区域 */
.output-area {
    width: 100%;
    padding: 16px;
    background-color: #f9f9f9;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
    font-weight: normal;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-y: auto;
}

.output-area.tall-output {
    min-height: 380px;
    max-height: 480px;
}

.output-area.medium-output {
    min-height: 200px;
    max-height: 300px;
}

.output-area.small-output {
    min-height: 100px;
    max-height: 150px;
}

.placeholder {
    color: #999;
    font-style: italic;
}

.loading {
    color: var(--theme-color);
    font-weight: 500;
}

.error {
    color: #d32f2f;
    font-weight: 500;
}

/* 消息提示框 */
.message-box {
    display: none;
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    margin-top: 12px;
    animation: slideDown 0.3s ease;
}

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

.message-box.show {
    display: block;
}

.message-box.success {
    background-color: var(--theme-color);
    color: white;
}

.message-box.error {
    background-color: var(--theme-color);
    color: white;
}

/* 表单 */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.model-select-group {
    display: flex;
    gap: 12px;
    align-items: center;
}

.model-select-group .form-select {
    flex: 1;
}

.btn-test {
    background-color: var(--theme-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-test:hover {
    opacity: 0.85;
}

.button-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.button-group .btn-primary,
.button-group .btn-secondary {
    flex: 0 1 auto;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: #555;
}

.form-input,
.form-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    font-weight: normal;
    transition: border-color 0.3s ease;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--theme-color);
}

.form-select {
    cursor: pointer;
    background-color: white;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.modal.show {
    display: flex;
    justify-content: center;
    align-items: center;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    background-color: white;
    border-radius: 12px;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid #e0e0e0;
}

.modal-header h2 {
    font-size: 20px;
    color: #000;
}

.close {
    font-size: 28px;
    font-weight: bold;
    color: #999;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: #333;
}

.modal-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.default-prompt-warning {
    color: #d32f2f;
    font-size: 14px;
    font-weight: 500;
    padding: 12px;
    background-color: #ffebee;
    border-left: 4px solid #d32f2f;
    border-radius: 4px;
    margin-bottom: 8px;
}

.prompt-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.prompt-group label {
    font-size: 14px;
    font-weight: 500;
    color: #555;
}

.prompt-textarea {
    width: 100%;
    min-height: 120px;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    font-weight: normal;
    resize: vertical;
    transition: border-color 0.3s ease;
}

.prompt-textarea:focus {
    outline: none;
    border-color: var(--theme-color);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid #e0e0e0;
}

/* 历史记录列表 */
.history-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 500px;
    overflow-y: auto;
}

.history-item {
    padding: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: white;
}

.history-item:hover {
    border-color: var(--theme-color);
    background-color: #f9f9f9;
}

.history-item.selected {
    border-color: var(--theme-color);
    background-color: #fff5f5;
}

.history-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.history-item-date {
    font-size: 12px;
    color: #999;
    font-weight: 500;
}

.history-item-preview {
    font-size: 14px;
    color: #333;
    line-height: 1.5;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.history-empty {
    text-align: center;
    padding: 40px 20px;
    color: #999;
    font-size: 14px;
}

/* 页脚 */
.footer {
    background-color: var(--theme-color);
    padding: 0 0 15px 0;
    display: flex;
    justify-content: center;
}

.footer-content {
    width: 1000px;
    max-width: 1000px;
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    padding: 24px;
    text-align: center;
}

.footer p {
    font-size: 14px;
    color: #666;
    margin: 0;
}

.footer a {
    color: var(--theme-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.footer a:hover {
    opacity: 0.7;
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .card {
        padding: 20px;
    }

    .title {
        font-size: 20px;
    }

    .modal-content {
        width: 95%;
    }
}