:root {
    --primary-color: #4a5568;
    --accent-color: #718096;
    --background-color: #f7fafc;
    --text-color: #2d3748;
    --border-color: #e2e8f0;
    --font-modern: "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-ancient: "KaiTi", "楷体", serif;
    --font-haiku: "SimSun", "宋体", serif;
    --error-color: #e53e3e;
    --success-color: #48bb78;
}

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--accent-color);
    font-size: 1.2rem;
}

.input-section {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.theme-input, .style-select, .emotion-select {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-weight: 500;
}

input, select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
}

.generate-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 6px;
    cursor: pointer;
    width: 100%;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.generate-btn:hover {
    background-color: var(--accent-color);
}

.output-section {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.poem-display {
    min-height: 200px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1.1rem;
    line-height: 2;
    background: #fffef8;
}

.poem-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #2d3748;
    margin-bottom: 2rem;
    font-family: "楷体", "KaiTi", serif;
}

.poem-content {
    text-align: center;
    margin-bottom: 2rem;
    font-family: "楷体", "KaiTi", serif;
}

.poem-line {
    margin: 0.8rem 0;
    font-size: 1.2rem;
    color: #4a5568;
}

.poem-analysis {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

.analysis-title {
    font-weight: bold;
    color: #2d3748;
    margin-bottom: 1rem;
}

.analysis-content {
    color: #4a5568;
    line-height: 1.8;
    text-align: justify;
    font-size: 1rem;
}

.poem-display > * {
    opacity: 0;
    transform: translateY(10px);
    animation: fadeIn 0.5s ease forwards;
}

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

.poem-title { animation-delay: 0.1s; }
.poem-content { animation-delay: 0.3s; }
.poem-analysis { animation-delay: 0.5s; }

.examples-section {
    margin-top: 3rem;
}

.example-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.example-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: all 0.3s ease;
}

.example-card:hover {
    transform: translateY(-4px);
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .poem-display {
        padding: 1.5rem;
    }
    
    .poem-title {
        font-size: 1.3rem;
    }
    
    .poem-line {
        font-size: 1.1rem;
    }
}

/* 诗词容器基础样式 */
.poem-wrapper {
    padding: 2rem;
    position: relative;
}

/* 现代诗样式 */
.modern-style {
    font-family: var(--font-modern);
}

.modern-poem {
    margin: 2rem 0;
    line-height: 2;
}

.modern-poem .poem-line {
    margin: 1rem 0;
    text-align: left;
    text-indent: 2em;
}

/* 古风诗样式 */
.ancient-style {
    font-family: var(--font-ancient);
}

.ancient-poem {
    margin: 2rem auto;
    max-width: 600px;
}

.ancient-poem .poem-couplet {
    margin: 1.5rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.ancient-poem .poem-line {
    font-size: 1.3rem;
    margin: 0.5rem 0;
    letter-spacing: 0.5rem;
}

/* 俳句样式 */
.haiku-style {
    font-family: var(--font-haiku);
}

.haiku-poem {
    margin: 3rem auto;
    max-width: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.haiku-poem .poem-line {
    font-size: 1.4rem;
    margin: 1.2rem 0;
    letter-spacing: 0.4rem;
    line-height: 1.6;
    text-align: center;
    width: 100%;
}

/* 为三行俳句添加不同的样式 */
.haiku-poem .poem-line:nth-child(1) {
    color: var(--color-text-primary);
}

.haiku-poem .poem-line:nth-child(2) {
    color: var(--color-text-primary);
    font-size: 1.5rem; /* 中间行稍大 */
}

.haiku-poem .poem-line:nth-child(3) {
    color: var(--color-text-primary);
}

/* 装饰元素 */
.ancient-style::before,
.ancient-style::after {
    content: '';
    position: absolute;
    width: 2px;
    height: 80%;
    background: #e2e8f0;
    top: 10%;
}

.ancient-style::before {
    left: 1rem;
}

.ancient-style::after {
    right: 1rem;
}

.haiku-style::before {
    content: '⚊';
    position: absolute;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    color: #718096;
}

/* 标题样式调整 */
.modern-style .poem-title {
    font-size: 1.8rem;
    font-weight: normal;
}

.ancient-style .poem-title {
    font-size: 2rem;
    letter-spacing: 0.5rem;
}

.haiku-style .poem-title {
    font-size: 1.5rem;
    letter-spacing: 0.3rem;
}

/* 赏析样式调整 */
.modern-style .poem-analysis {
    text-align: left;
    font-size: 0.95rem;
}

.ancient-style .poem-analysis {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 1rem;
}

.haiku-style .poem-analysis {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 0.9rem;
    max-width: 500px;
    margin: 0 auto;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .poem-wrapper {
        padding: 1.5rem;
    }
    
    .ancient-poem .poem-line {
        font-size: 1.1rem;
        letter-spacing: 0.3rem;
    }
    
    .haiku-poem .poem-line {
        font-size: 1rem;
        letter-spacing: 0.2rem;
    }
    
    .ancient-style::before,
    .ancient-style::after {
        display: none;
    }
}

/* 主题配色方案 */
.theme-light {
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --border-color: #e2e8f0;
    --accent-color: #718096;
}

.theme-dark {
    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --border-color: #4a5568;
    --accent-color: #a0aec0;
}

.theme-ink {
    --bg-primary: #fffef8;
    --bg-secondary: #f4f3e8;
    --text-primary: #2c2c2c;
    --text-secondary: #4a4a4a;
    --border-color: #8b8b8b;
    --accent-color: #595959;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h100v100H0z' fill='%23f4f3e8' fill-opacity='0.4'/%3E%3C/svg%3E");
}

/* 字体设置 */
/* 删除这些类
.font-songti { font-family: "SimSun", "宋体", serif; }
.font-kaiti { font-family: "KaiTi", "楷体", serif; }
.font-fangsong { font-family: "FangSong", "仿宋", serif; }
*/

/* 竖排展示 */
.vertical-text {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    height: 400px;
    margin: 0 auto;
    overflow-x: auto;
}

.vertical-text .poem-line {
    height: auto;
    margin: 0 1rem;
    white-space: nowrap;
}

/* 装饰风格 */
.decoration-simple::before,
.decoration-simple::after {
    content: '';
    position: absolute;
    width: 2px;
    height: 80%;
    background: var(--border-color);
    top: 10%;
    transition: background-color 0.3s;
}

.decoration-simple::before { left: 1rem; }
.decoration-simple::after { right: 1rem; }

.decoration-traditional {
    background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20 0c11 0 20 9 20 20s-9 20-20 20S0 31 0 20 9 0 20 0zm0 2c-9.9 0-18 8.1-18 18s8.1 18 18 18 18-8.1 18-18S29.9 2 20 2zm0 4c7.7 0 14 6.3 14 14s-6.3 14-14 14S6 27.7 6 20 12.3 6 20 6zm0 2c-6.6 0-12 5.4-12 12s5.4 12 12 12 12-5.4 12-12S26.6 8 20 8z' fill='%23718096' fill-opacity='0.1'/%3E%3C/svg%3E");
}

/* 设置面板样式 */
.settings-panel {
    position: fixed;
    right: 2rem;
    top: 2rem;
    z-index: 1000;
}

.settings-toggle {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 0.5rem;
    transition: all 0.3s ease;
}

.settings-toggle svg {
    fill: var(--text-primary);
    transition: fill 0.3s;
}

.settings-content {
    position: absolute;
    right: 0;
    top: 50px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    width: 200px;
    display: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.settings-content.show {
    display: block;
    animation: slideIn 0.3s ease;
}

.setting-item {
    margin-bottom: 1rem;
}

.setting-item label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.setting-item select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

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

@media (max-width: 768px) {
    .settings-panel {
        right: 1rem;
        top: 1rem;
    }
    
    .settings-content {
        width: calc(100vw - 3rem);
        right: -0.5rem;
    }
    
    .container {
        padding: 1rem;
    }
    
    .vertical-text {
        height: 300px;
    }
}

/* 加载状态样式 */
.loading-state {
    text-align: center;
    padding: 2rem;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    margin: 0 auto 1rem;
    animation: spin 1s linear infinite;
}

.error-state {
    text-align: center;
    color: #e53e3e;
    padding: 2rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 操作按钮样式 */
.action-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    justify-content: center;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.action-btn:hover {
    background: var(--bg-secondary);
}

.action-btn svg {
    fill: currentColor;
}

/* 历史记录样式 */
.history-section {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.history-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.history-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.history-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.history-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.delete-history {
    background: none;
    border: none;
    padding: 4px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.3s ease;
    color: var(--error-color);
}

.delete-history svg {
    fill: currentColor;
}

.history-item:hover .delete-history {
    opacity: 1;
}

.delete-history:hover {
    transform: scale(1.1);
}

/* 确保字体清晰 */
.poem-title, .poem-content, .poem-line {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* 确保字体渲染清晰 */
.poem-wrapper {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* 优化打印和导出时的样式 */
@media print {
    .poem-wrapper {
        background: white !important;
        color: black !important;
        page-break-inside: avoid;
    }
}

/* 优化模型选择样式 */
#modelSelect {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

#modelSelect:hover {
    border-color: var(--accent-color);
}

#modelSelect option {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 0.5rem;
}

/* 修改历史记录项样式 */
.history-title {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0.5rem 0;
}

.history-theme {
    font-size: 0.9rem;
    color: var(--text-secondary);
}