/* ========== 孙子兵法工具 - 古风样式 ========== */

/* 古典中国色彩变量 */
:root {
    --aow-paper: #F5F0E8;
    --aow-ink: #2C2C2C;
    --aow-vermilion: #C03C3C;
    --aow-gold: #B8860B;
    --aow-navy: #2E4057;
    --aow-brown: #5C4033;
    --aow-beige: #E8DCC4;
    --aow-seal: #8B2500;
    --aow-jade: #5F9EA0;
    --aow-cloud: #F8F4EC;
}

/* ========== 自定义滚动条 ========== */
.aow-container ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.aow-container ::-webkit-scrollbar-track {
    background: var(--aow-beige);
    border-radius: 4px;
}

.aow-container ::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--aow-gold) 0%, var(--aow-brown) 100%);
    border-radius: 4px;
    border: 1px solid var(--aow-beige);
}

.aow-container ::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--aow-vermilion) 0%, var(--aow-seal) 100%);
}

/* Firefox 滚动条 */
.aow-container * {
    scrollbar-width: thin;
    scrollbar-color: var(--aow-gold) var(--aow-beige);
}

/* ========== 主容器 ========== */
.aow-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 200px);
    min-height: 600px;
    background: var(--aow-paper);
    border-radius: 0 0 12px 12px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
}

/* 全屏模式 */
.aow-container.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 9999;
    border-radius: 0;
    margin: 0;
}

/* ========== 顶部工具栏 ========== */
.aow-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: linear-gradient(135deg, var(--aow-seal) 0%, var(--aow-brown) 100%);
    border-bottom: 3px solid var(--aow-gold);
    color: white;
    flex-wrap: wrap;
    gap: 8px;
    flex-shrink: 0;
}

.aow-toolbar-group {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.aow-toolbar-btn {
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--aow-gold);
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: var(--aow-seal);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.aow-toolbar-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s;
}

.aow-toolbar-btn:hover::before {
    left: 100%;
}

.aow-toolbar-btn:hover {
    background: var(--aow-beige);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.aow-toolbar-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.aow-toolbar-btn.fullscreen-active {
    background: var(--aow-vermilion);
    color: white;
    border-color: var(--aow-vermilion);
}

/* ========== 主内容区 ========== */
.aow-main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
    background: var(--aow-cloud);
}

/* ========== 左侧边栏 ========== */
.aow-sidebar {
    width: 220px;
    background: linear-gradient(180deg, var(--aow-beige) 0%, var(--aow-paper) 100%);
    border-right: 2px solid var(--aow-gold);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: width 0.3s, margin 0.3s;
}

.aow-sidebar.collapsed {
    width: 40px;
    min-width: 40px;
    overflow: hidden;
}

.aow-sidebar.collapsed .aow-sidebar-header {
    padding: 16px 8px;
    justify-content: center;
}

.aow-sidebar.collapsed .aow-sidebar-title,
.aow-sidebar.collapsed .aow-chapter-list {
    display: none;
}

.aow-sidebar.collapsed .aow-sidebar-toggle {
    margin: 0;
    width: 24px;
    height: 24px;
    font-size: 12px;
}

.aow-sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: var(--aow-seal);
    color: var(--aow-beige);
    border-bottom: 2px solid var(--aow-gold);
}

.aow-sidebar-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 2px;
}

.aow-sidebar-toggle {
    width: 28px;
    height: 28px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 4px;
    color: var(--aow-beige);
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
}

.aow-sidebar-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
}

.aow-chapter-list {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.aow-chapter-item {
    display: flex;
    align-items: center;
    padding: 12px 14px;
    margin-bottom: 6px;
    background: var(--aow-paper);
    border: 1px solid transparent;
    border-left: 4px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 14px;
    color: var(--aow-ink);
    position: relative;
}

.aow-chapter-item:hover {
    background: white;
    border-color: var(--aow-gold);
    border-left-color: var(--aow-vermilion);
    transform: translateX(4px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.aow-chapter-item.active {
    background: white;
    border-color: var(--aow-vermilion);
    border-left-color: var(--aow-vermilion);
    color: var(--aow-vermilion);
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(192, 60, 60, 0.2);
    transform: translateX(4px);
}

.aow-chapter-item.active::after {
    content: '◀';
    position: absolute;
    right: 12px;
    color: var(--aow-vermilion);
    font-size: 10px;
    animation: aowPulse 1.5s ease-in-out infinite;
}

@keyframes aowPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.aow-chapter-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    background: var(--aow-vermilion);
    color: white;
    border-radius: 50%;
    font-size: 12px;
    margin-right: 10px;
    flex-shrink: 0;
}

/* ========== 右侧内容区 ========== */
.aow-content-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--aow-paper);
}

/* 标签页 */
.aow-tabs {
    display: flex;
    padding: 0 20px;
    background: var(--aow-beige);
    border-bottom: 2px solid var(--aow-gold);
    flex-shrink: 0;
}

.aow-tab {
    padding: 14px 24px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    color: var(--aow-brown);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    margin-bottom: -2px;
    position: relative;
}

.aow-tab:hover {
    color: var(--aow-vermilion);
    background: rgba(192, 60, 60, 0.05);
}

.aow-tab.active {
    color: var(--aow-vermilion);
    border-bottom-color: var(--aow-vermilion);
    background: var(--aow-paper);
}

.aow-tab.active::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid var(--aow-paper);
}

/* 标签内容 */
.aow-tab-content {
    display: none;
    flex: 1;
    overflow: hidden;
}

.aow-tab-content.active {
    display: flex;
    flex-direction: column;
}

/* ========== 阅读面板 ========== */
.aow-reading-panel {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
}

/* 章节头部 */
.aow-chapter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--aow-gold);
}

.aow-chapter-title-wrapper {
    display: flex;
    align-items: center;
    gap: 16px;
}

.aow-chapter-title-wrapper .aow-chapter-num {
    width: 48px;
    height: 48px;
    font-size: 20px;
    background: linear-gradient(135deg, var(--aow-vermilion) 0%, var(--aow-seal) 100%);
    box-shadow: 0 3px 10px rgba(192, 60, 60, 0.3);
}

.aow-chapter-title {
    margin: 0;
    font-size: 28px;
    font-weight: 700;
    color: var(--aow-ink);
    letter-spacing: 4px;
}

.aow-chapter-nav {
    display: flex;
    align-items: center;
    gap: 12px;
}

.aow-nav-btn {
    padding: 8px 16px;
    background: var(--aow-beige);
    border: 1px solid var(--aow-gold);
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    color: var(--aow-brown);
    transition: all 0.2s;
    font-family: inherit;
}

.aow-nav-btn:hover {
    background: var(--aow-gold);
    color: white;
}

.aow-chapter-indicator {
    font-size: 14px;
    color: var(--aow-brown);
    padding: 0 8px;
}

/* 文本内容 */
.aow-text-content {
    max-width: 900px;
    margin: 0 auto;
}

.aow-section {
    margin-bottom: 40px;
    padding: 25px 30px;
    background: white;
    border-radius: 8px;
    border: 1px solid var(--aow-beige);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    position: relative;
    animation: aowFadeInUp 0.5s ease-out;
}

@keyframes aowFadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.aow-section::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--aow-vermilion) 0%, var(--aow-gold) 100%);
    border-radius: 8px 0 0 8px;
}

.aow-section-title {
    margin: 0 0 20px;
    font-size: 18px;
    font-weight: 600;
    color: var(--aow-seal);
    letter-spacing: 2px;
}

.aow-original-text {
    font-size: 18px;
    line-height: 2.2;
    color: var(--aow-ink);
    text-align: justify;
    letter-spacing: 1px;
}

.aow-translation {
    font-size: 16px;
    line-height: 2;
    color: #555;
    text-align: justify;
}

.aow-essence {
    font-size: 16px;
    line-height: 1.9;
    color: var(--aow-navy);
    padding: 20px;
    background: linear-gradient(135deg, rgba(192, 60, 60, 0.05) 0%, rgba(184, 134, 11, 0.05) 100%);
    border-radius: 6px;
    border-left: 3px solid var(--aow-vermilion);
}

/* 搜索高亮 */
.aow-highlight {
    background: linear-gradient(180deg, transparent 60%, rgba(255, 215, 0, 0.4) 60%);
    padding: 0 2px;
    border-radius: 2px;
}

/* ========== AI分析面板 ========== */
.aow-analysis-panel {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
}

.aow-input-section {
    margin-bottom: 30px;
}

.aow-label {
    display: block;
    margin-bottom: 12px;
    font-size: 16px;
    font-weight: 600;
    color: var(--aow-ink);
}

.aow-textarea {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--aow-beige);
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
    line-height: 1.8;
    resize: vertical;
    transition: all 0.2s;
    background: white;
    box-sizing: border-box;
}

.aow-textarea:focus {
    border-color: var(--aow-vermilion);
    outline: none;
    box-shadow: 0 0 0 3px rgba(192, 60, 60, 0.1);
}

.aow-input-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    flex-wrap: wrap;
    gap: 16px;
}

.aow-select-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--aow-brown);
}

.aow-select {
    padding: 8px 12px;
    border: 1px solid var(--aow-beige);
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    background: white;
    min-width: 140px;
}

.aow-btn-group {
    display: flex;
    gap: 10px;
}

.aow-btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: inherit;
}

.aow-btn-primary {
    background: linear-gradient(135deg, var(--aow-vermilion) 0%, var(--aow-seal) 100%);
    color: white;
    box-shadow: 0 3px 12px rgba(192, 60, 60, 0.3);
    position: relative;
    overflow: hidden;
}

.aow-btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.aow-btn-primary:hover::before {
    left: 100%;
}

.aow-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(192, 60, 60, 0.4);
}

.aow-btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.aow-btn-secondary {
    background: var(--aow-beige);
    color: var(--aow-brown);
    border: 1px solid var(--aow-gold);
}

.aow-btn-secondary:hover {
    background: var(--aow-gold);
    color: white;
}

.aow-btn-cancel {
    background: #ef4444;
    color: white;
    border: none;
}

.aow-btn-cancel:hover {
    background: #dc2626;
}

/* 分析结果 */
.aow-result-section {
    background: white;
    border-radius: 8px;
    border: 1px solid var(--aow-beige);
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    animation: aowSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.aow-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: linear-gradient(135deg, var(--aow-beige) 0%, var(--aow-paper) 100%);
    border-bottom: 1px solid var(--aow-gold);
}

.aow-result-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--aow-seal);
}

.aow-result-actions {
    display: flex;
    gap: 8px;
}

.aow-action-btn {
    padding: 6px 12px;
    background: white;
    border: 1px solid var(--aow-beige);
    border-radius: 4px;
    font-size: 13px;
    cursor: pointer;
    color: var(--aow-brown);
    transition: all 0.2s;
    font-family: inherit;
}

.aow-action-btn:hover {
    background: var(--aow-vermilion);
    color: white;
    border-color: var(--aow-vermilion);
}

.aow-result-content {
    padding: 24px;
    font-size: 15px;
    line-height: 1.9;
    color: var(--aow-ink);
}

.aow-result-content h1,
.aow-result-content h2,
.aow-result-content h3 {
    color: var(--aow-seal);
    margin: 24px 0 12px;
}

.aow-result-content h1:first-child,
.aow-result-content h2:first-child,
.aow-result-content h3:first-child {
    margin-top: 0;
}

.aow-result-content p {
    margin: 12px 0;
}

.aow-result-content blockquote {
    margin: 16px 0;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(192, 60, 60, 0.05) 0%, rgba(184, 134, 11, 0.05) 100%);
    border-left: 4px solid var(--aow-vermilion);
    border-radius: 0 6px 6px 0;
    font-style: italic;
}

.aow-result-content strong {
    color: var(--aow-vermilion);
}

/* ========== 模态框 ========== */
.aow-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 100000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    backdrop-filter: blur(2px);
}

.aow-modal.show {
    display: flex;
}

.aow-modal-content {
    background: var(--aow-paper);
    border-radius: 12px;
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.25);
    animation: aowModalSlideIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 2px solid var(--aow-gold);
}

.aow-modal-search {
    max-width: 700px;
}

.aow-modal-history {
    max-width: 750px;
}

.aow-modal-shortcuts {
    max-width: 400px;
}

.aow-modal-fontsize {
    max-width: 360px;
}

@keyframes aowModalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.aow-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: linear-gradient(135deg, var(--aow-seal) 0%, var(--aow-brown) 100%);
    color: var(--aow-beige);
    flex-shrink: 0;
}

.aow-modal-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
}

.aow-modal-header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.aow-modal-close {
    width: 30px;
    height: 30px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 4px;
    color: var(--aow-beige);
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.aow-modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

.aow-clear-btn {
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 4px;
    color: var(--aow-beige);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.aow-clear-btn:hover {
    background: #ef4444;
}

.aow-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

/* 搜索 */
.aow-search-input-wrapper {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.aow-search-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--aow-beige);
    border-radius: 6px;
    font-size: 15px;
    font-family: inherit;
    transition: all 0.2s;
}

.aow-search-input:focus {
    border-color: var(--aow-vermilion);
    outline: none;
}

.aow-search-btn {
    padding: 12px 24px;
    background: var(--aow-vermilion);
    border: none;
    border-radius: 6px;
    color: white;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.aow-search-btn:hover {
    background: var(--aow-seal);
}

.aow-search-results {
    max-height: 400px;
    overflow-y: auto;
}

.aow-search-hint {
    text-align: center;
    color: #999;
    padding: 40px;
    font-size: 14px;
}

.aow-search-result-item {
    padding: 16px;
    background: white;
    border: 1px solid var(--aow-beige);
    border-radius: 6px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.aow-search-result-item:hover {
    border-color: var(--aow-vermilion);
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.aow-search-result-chapter {
    font-size: 13px;
    color: var(--aow-vermilion);
    font-weight: 600;
    margin-bottom: 8px;
}

.aow-search-result-text {
    font-size: 14px;
    color: var(--aow-ink);
    line-height: 1.8;
}

/* 示例列表 */
.aow-examples-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.aow-example-item {
    padding: 16px 20px;
    background: white;
    border: 1px solid var(--aow-beige);
    border-left: 4px solid var(--aow-vermilion);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 14px;
    line-height: 1.7;
    color: var(--aow-ink);
}

.aow-example-item:hover {
    background: var(--aow-cloud);
    border-color: var(--aow-gold);
    transform: translateX(6px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* 历史列表 */
.aow-history-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

.aow-history-item {
    padding: 16px;
    background: white;
    border: 1px solid var(--aow-beige);
    border-radius: 8px;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.aow-history-item:hover {
    border-color: var(--aow-gold);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.aow-history-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
}

.aow-history-item-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: #999;
}

.aow-history-item-chapter {
    padding: 2px 8px;
    background: var(--aow-vermilion);
    color: white;
    border-radius: 3px;
    font-size: 11px;
}

.aow-history-item-delete {
    width: 24px;
    height: 24px;
    background: #fff0f0;
    border: none;
    border-radius: 4px;
    color: #ef4444;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.aow-history-item-delete:hover {
    background: #ef4444;
    color: white;
}

.aow-history-item-scenario {
    font-size: 14px;
    color: var(--aow-ink);
    line-height: 1.6;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.aow-history-item-actions {
    display: flex;
    gap: 8px;
}

.aow-history-action-btn {
    padding: 6px 14px;
    background: var(--aow-beige);
    border: 1px solid var(--aow-gold);
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    color: var(--aow-brown);
    transition: all 0.2s;
    font-family: inherit;
}

.aow-history-action-btn:hover {
    background: var(--aow-vermilion);
    color: white;
    border-color: var(--aow-vermilion);
}

/* ========== 快捷键帮助 ========== */
.aow-shortcuts-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.aow-shortcut-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: white;
    border-radius: 6px;
    border: 1px solid var(--aow-beige);
    transition: all 0.25s ease;
}

.aow-shortcut-item:hover {
    background: var(--aow-cloud);
    transform: translateX(4px);
}

.aow-shortcut-key {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 50px;
    padding: 6px 12px;
    background: linear-gradient(180deg, #f8f8f8 0%, #e8e8e8 100%);
    border: 1px solid #ccc;
    border-radius: 4px;
    font-family: monospace;
    font-size: 13px;
    font-weight: 600;
    color: var(--aow-ink);
    box-shadow: 0 2px 0 #bbb;
}

.aow-shortcut-desc {
    color: var(--aow-brown);
    font-size: 14px;
}

/* ========== 字体大小选择器 ========== */
.aow-fontsize-controls {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 20px;
}

.aow-fontsize-btn {
    padding: 14px 22px;
    background: white;
    border: 2px solid var(--aow-beige);
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    color: var(--aow-brown);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    min-width: 65px;
    position: relative;
    overflow: hidden;
}

.aow-fontsize-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(192, 60, 60, 0.08) 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.aow-fontsize-btn:hover {
    border-color: var(--aow-gold);
    background: var(--aow-cloud);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.aow-fontsize-btn:hover::before {
    opacity: 1;
}

.aow-fontsize-btn.active {
    background: var(--aow-vermilion);
    border-color: var(--aow-vermilion);
    color: white;
    box-shadow: 0 4px 16px rgba(192, 60, 60, 0.35);
}

.aow-fontsize-preview {
    padding: 20px;
    background: white;
    border: 1px solid var(--aow-beige);
    border-radius: 10px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    line-height: 1.8;
    text-align: center;
    color: var(--aow-ink);
    line-height: 1.8;
    transition: font-size 0.2s;
}

/* ========== 字体大小调整 ========== */
.aow-container.font-small .aow-original-text {
    font-size: 15px;
    line-height: 2;
}
.aow-container.font-small .aow-translation,
.aow-container.font-small .aow-essence {
    font-size: 14px;
    line-height: 1.9;
}

.aow-container.font-medium .aow-original-text {
    font-size: 18px;
    line-height: 2.2;
}
.aow-container.font-medium .aow-translation,
.aow-container.font-medium .aow-essence {
    font-size: 16px;
    line-height: 2;
}

.aow-container.font-large .aow-original-text {
    font-size: 20px;
    line-height: 2.3;
}
.aow-container.font-large .aow-translation,
.aow-container.font-large .aow-essence {
    font-size: 18px;
    line-height: 2.1;
}

.aow-container.font-xlarge .aow-original-text {
    font-size: 22px;
    line-height: 2.4;
}
.aow-container.font-xlarge .aow-translation,
.aow-container.font-xlarge .aow-essence {
    font-size: 20px;
    line-height: 2.2;
}

/* ========== 移动端底部导航 ========== */
.aow-mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--aow-paper);
    border-top: 2px solid var(--aow-gold);
    padding: 8px 0;
    z-index: 9998;
    justify-content: space-around;
}

.aow-mobile-nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 16px;
    background: transparent;
    border: none;
    color: var(--aow-brown);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    position: relative;
}

.aow-mobile-nav-btn::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 20px;
    height: 3px;
    background: var(--aow-vermilion);
    border-radius: 2px;
    transition: transform 0.3s;
}

.aow-mobile-nav-btn.active {
    color: var(--aow-vermilion);
}

.aow-mobile-nav-btn.active::after {
    transform: translateX(-50%) scaleX(1);
}

.aow-nav-icon {
    font-size: 20px;
    margin-bottom: 2px;
}

/* ========== Toast通知 ========== */
.aow-toast {
    position: fixed;
    top: 80px;
    right: 20px;
    min-width: 200px;
    padding: 14px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    z-index: 100001;
    font-size: 14px;
    font-weight: 500;
    animation: aowToastSlideIn 0.3s ease-out;
    font-family: inherit;
}

@keyframes aowToastSlideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.aow-toast.success {
    background: #4caf50;
    color: white;
}

.aow-toast.error {
    background: #f44336;
    color: white;
}

.aow-toast.info {
    background: var(--aow-vermilion);
    color: white;
}

/* ========== 加载动画 ========== */
.aow-loading {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: aowSpin 0.8s linear infinite;
    vertical-align: middle;
    margin-right: 4px;
}

/* 古风加载效果 */
.aow-loading-ancient {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.aow-loading-ancient span {
    width: 6px;
    height: 6px;
    background: var(--aow-vermilion);
    border-radius: 50%;
    animation: aowBounce 1.4s ease-in-out infinite;
}

.aow-loading-ancient span:nth-child(1) { animation-delay: 0s; }
.aow-loading-ancient span:nth-child(2) { animation-delay: 0.2s; }
.aow-loading-ancient span:nth-child(3) { animation-delay: 0.4s; }

@keyframes aowBounce {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

@keyframes aowSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ========== 暗黑模式 ========== */
body.dark {
    --aow-dark-bg: #1A1A2E;
    --aow-dark-surface: #16213E;
    --aow-dark-text: #E0D5C0;
    --aow-dark-gold: #C4A35A;
    --aow-dark-border: #3A3A5E;
}

body.dark .aow-container {
    background: var(--aow-dark-bg);
}

body.dark .aow-toolbar {
    background: linear-gradient(135deg, #2A2A4E 0%, #1A1A2E 100%);
    border-bottom-color: var(--aow-dark-gold);
}

body.dark .aow-toolbar-btn {
    background: var(--aow-dark-surface);
    color: var(--aow-dark-text);
    border-color: var(--aow-dark-border);
}

body.dark .aow-toolbar-btn:hover {
    background: #2A2A4E;
}

body.dark .aow-toolbar-btn.fullscreen-active {
    background: var(--aow-dark-gold);
    color: var(--aow-dark-bg);
    border-color: var(--aow-dark-gold);
}

body.dark .aow-main-content {
    background: var(--aow-dark-bg);
}

/* 暗黑模式滚动条 */
body.dark .aow-container ::-webkit-scrollbar-track {
    background: var(--aow-dark-surface);
}

body.dark .aow-container ::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--aow-dark-gold) 0%, #8B6914 100%);
    border-color: var(--aow-dark-surface);
}

body.dark .aow-container ::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #D4B36A 0%, var(--aow-dark-gold) 100%);
}

body.dark .aow-container * {
    scrollbar-color: var(--aow-dark-gold) var(--aow-dark-surface);
}

body.dark .aow-sidebar {
    background: linear-gradient(180deg, var(--aow-dark-surface) 0%, var(--aow-dark-bg) 100%);
    border-right-color: var(--aow-dark-gold);
}

body.dark .aow-sidebar-header {
    background: #2A2A4E;
    border-bottom-color: var(--aow-dark-gold);
}

body.dark .aow-chapter-item {
    background: var(--aow-dark-surface);
    color: var(--aow-dark-text);
}

body.dark .aow-chapter-item:hover {
    background: #2A2A4E;
    border-color: var(--aow-dark-gold);
}

body.dark .aow-chapter-item.active {
    background: #2A2A4E;
    border-color: var(--aow-dark-gold);
    color: var(--aow-dark-gold);
}

body.dark .aow-content-area {
    background: var(--aow-dark-bg);
}

body.dark .aow-tabs {
    background: var(--aow-dark-surface);
    border-bottom-color: var(--aow-dark-gold);
}

body.dark .aow-tab {
    color: var(--aow-dark-text);
}

body.dark .aow-tab.active {
    color: var(--aow-dark-gold);
    border-bottom-color: var(--aow-dark-gold);
    background: var(--aow-dark-bg);
}

body.dark .aow-reading-panel,
body.dark .aow-analysis-panel {
    background: var(--aow-dark-bg);
}

body.dark .aow-chapter-header {
    border-bottom-color: var(--aow-dark-gold);
}

body.dark .aow-chapter-title {
    color: var(--aow-dark-text);
}

body.dark .aow-nav-btn {
    background: var(--aow-dark-surface);
    color: var(--aow-dark-text);
    border-color: var(--aow-dark-border);
}

body.dark .aow-nav-btn:hover {
    background: var(--aow-dark-gold);
    color: var(--aow-dark-bg);
}

body.dark .aow-chapter-indicator {
    color: var(--aow-dark-text);
}

body.dark .aow-section {
    background: var(--aow-dark-surface);
    border-color: var(--aow-dark-border);
}

body.dark .aow-section::before {
    background: linear-gradient(180deg, var(--aow-dark-gold) 0%, #8B6914 100%);
}

body.dark .aow-section-title {
    color: var(--aow-dark-gold);
}

body.dark .aow-original-text {
    color: var(--aow-dark-text);
}

body.dark .aow-translation {
    color: #B0A090;
}

body.dark .aow-essence {
    color: #A0C0D0;
    background: rgba(196, 163, 90, 0.1);
    border-left-color: var(--aow-dark-gold);
}

body.dark .aow-label {
    color: var(--aow-dark-text);
}

body.dark .aow-textarea {
    background: var(--aow-dark-surface);
    border-color: var(--aow-dark-border);
    color: var(--aow-dark-text);
}

body.dark .aow-textarea:focus {
    border-color: var(--aow-dark-gold);
    box-shadow: 0 0 0 3px rgba(196, 163, 90, 0.2);
}

body.dark .aow-select-wrapper {
    color: var(--aow-dark-text);
}

body.dark .aow-select {
    background: var(--aow-dark-surface);
    border-color: var(--aow-dark-border);
    color: var(--aow-dark-text);
}

body.dark .aow-btn-primary {
    background: linear-gradient(135deg, var(--aow-dark-gold) 0%, #8B6914 100%);
}

body.dark .aow-btn-secondary {
    background: var(--aow-dark-surface);
    color: var(--aow-dark-text);
    border-color: var(--aow-dark-border);
}

body.dark .aow-btn-secondary:hover {
    background: var(--aow-dark-gold);
    color: var(--aow-dark-bg);
}

body.dark .aow-btn-cancel {
    background: #dc2626;
}

body.dark .aow-btn-cancel:hover {
    background: #b91c1c;
}

body.dark .aow-result-section {
    background: var(--aow-dark-surface);
    border-color: var(--aow-dark-border);
}

body.dark .aow-result-header {
    background: #2A2A4E;
    border-bottom-color: var(--aow-dark-border);
}

body.dark .aow-result-header h3 {
    color: var(--aow-dark-gold);
}

body.dark .aow-action-btn {
    background: var(--aow-dark-surface);
    color: var(--aow-dark-text);
    border-color: var(--aow-dark-border);
}

body.dark .aow-action-btn:hover {
    background: var(--aow-dark-gold);
    color: var(--aow-dark-bg);
    border-color: var(--aow-dark-gold);
}

body.dark .aow-result-content {
    color: var(--aow-dark-text);
}

body.dark .aow-result-content h1,
body.dark .aow-result-content h2,
body.dark .aow-result-content h3 {
    color: var(--aow-dark-gold);
}

body.dark .aow-result-content blockquote {
    background: rgba(196, 163, 90, 0.1);
    border-left-color: var(--aow-dark-gold);
}

body.dark .aow-result-content strong {
    color: var(--aow-dark-gold);
}

body.dark .aow-modal-content {
    background: var(--aow-dark-bg);
    border-color: var(--aow-dark-gold);
}

body.dark .aow-modal-header {
    background: #2A2A4E;
}

body.dark .aow-search-input {
    background: var(--aow-dark-surface);
    border-color: var(--aow-dark-border);
    color: var(--aow-dark-text);
}

body.dark .aow-search-input:focus {
    border-color: var(--aow-dark-gold);
}

body.dark .aow-search-btn {
    background: var(--aow-dark-gold);
}

body.dark .aow-search-result-item,
body.dark .aow-example-item,
body.dark .aow-history-item {
    background: var(--aow-dark-surface);
    border-color: var(--aow-dark-border);
    color: var(--aow-dark-text);
}

body.dark .aow-search-result-item:hover,
body.dark .aow-example-item:hover {
    border-color: var(--aow-dark-gold);
}

body.dark .aow-search-result-chapter {
    color: var(--aow-dark-gold);
}

body.dark .aow-history-item-chapter {
    background: var(--aow-dark-gold);
}

body.dark .aow-history-action-btn {
    background: #2A2A4E;
    color: var(--aow-dark-text);
    border-color: var(--aow-dark-border);
}

body.dark .aow-history-action-btn:hover {
    background: var(--aow-dark-gold);
    color: var(--aow-dark-bg);
}

body.dark .aow-shortcut-item {
    background: var(--aow-dark-surface);
    border-color: var(--aow-dark-border);
}

body.dark .aow-shortcut-key {
    background: linear-gradient(180deg, #3A3A5E 0%, #2A2A4E 100%);
    border-color: #4A4A6E;
    color: var(--aow-dark-text);
    box-shadow: 0 2px 0 #1A1A2E;
}

body.dark .aow-shortcut-desc {
    color: var(--aow-dark-text);
}

body.dark .aow-fontsize-btn {
    background: var(--aow-dark-surface);
    border-color: var(--aow-dark-border);
    color: var(--aow-dark-text);
}

body.dark .aow-fontsize-btn:hover {
    border-color: var(--aow-dark-gold);
    background: #2A2A4E;
}

body.dark .aow-fontsize-btn.active {
    background: var(--aow-dark-gold);
    border-color: var(--aow-dark-gold);
    color: var(--aow-dark-bg);
}

body.dark .aow-fontsize-preview {
    background: var(--aow-dark-surface);
    border-color: var(--aow-dark-border);
    color: var(--aow-dark-text);
}

body.dark .aow-mobile-nav {
    background: var(--aow-dark-surface);
    border-top-color: var(--aow-dark-gold);
}

body.dark .aow-mobile-nav-btn {
    color: var(--aow-dark-text);
}

body.dark .aow-mobile-nav-btn.active {
    color: var(--aow-dark-gold);
}

body.dark .aow-highlight {
    background: linear-gradient(180deg, transparent 60%, rgba(196, 163, 90, 0.4) 60%);
}

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
    .aow-sidebar {
        width: 200px;
    }
    
    .aow-reading-panel,
    .aow-analysis-panel {
        padding: 20px;
    }
    
    .aow-chapter-title {
        font-size: 24px;
    }
}

@media (max-width: 768px) {
    .aow-container {
        height: calc(100vh - 150px);
    }
    
    .aow-toolbar {
        padding: 8px 12px;
    }
    
    .aow-toolbar-btn {
        padding: 6px 10px;
        font-size: 12px;
    }
    
    .aow-sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        bottom: 0;
        z-index: 9997;
        width: 260px;
        transition: left 0.3s;
    }
    
    .aow-sidebar.mobile-open {
        left: 0;
    }
    
    .aow-tabs {
        padding: 0 12px;
    }
    
    .aow-tab {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .aow-chapter-header {
        flex-direction: column;
        gap: 16px;
    }
    
    .aow-chapter-title {
        font-size: 22px;
        letter-spacing: 2px;
    }
    
    .aow-chapter-title-wrapper .aow-chapter-num {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    
    .aow-section {
        padding: 20px;
    }
    
    .aow-original-text {
        font-size: 16px;
        line-height: 2;
    }
    
    .aow-input-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .aow-select-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .aow-select {
        width: 100%;
    }
    
    .aow-btn-group {
        justify-content: stretch;
    }
    
    .aow-btn-group .aow-btn {
        flex: 1;
        justify-content: center;
    }
    
    .aow-mobile-nav {
        display: flex;
    }
    
    .aow-container {
        padding-bottom: 70px;
    }
    
    .aow-container.fullscreen {
        padding-bottom: 0;
    }
    
    .aow-container.fullscreen .aow-mobile-nav {
        display: none;
    }
}

@media (max-width: 480px) {
    .aow-toolbar-group:not(:first-child) {
        display: none;
    }
    
    .aow-reading-panel,
    .aow-analysis-panel {
        padding: 16px;
    }
    
    .aow-chapter-title {
        font-size: 20px;
    }
    
    .aow-modal-content {
        margin: 10px;
        max-height: calc(100vh - 20px);
    }
}