/**
 * PO18小说下载站 - MD3简约风格
 */

/* ===== CSS变量 - MD3色彩系统 ===== */
:root {
    /* 主色调 - 粉色系 */
    --md-primary: #d81b60;
    --md-on-primary: #ffffff;
    --md-primary-container: #ffd9e3;
    --md-on-primary-container: #3e001f;

    /* 次级色 */
    --md-secondary: #6e5b5f;
    --md-on-secondary: #ffffff;
    --md-secondary-container: #f7dde2;
    --md-on-secondary-container: #27161c;

    /* 表面颜色 */
    --md-surface: #fffbff;
    --md-surface-dim: #e4d7d9;
    --md-surface-variant: #f3dee3;
    --md-on-surface: #201a1b;
    --md-on-surface-variant: #514347;
    --md-outline: #837377;
    --md-outline-variant: #d5c2c6;

    /* 背景和容器 */
    --md-background: #fff8f9;
    --md-surface-container-lowest: #ffffff;
    --md-surface-container-low: #fef0f2;
    --md-surface-container: #f8eaec;
    --md-surface-container-high: #f2e4e7;
    --md-surface-container-highest: #ecdee1;

    /* RGB值（用于毛玻璃） */
    --md-surface-container-lowest-rgb: 255, 251, 255;
    --md-surface-container-rgb: 248, 234, 236;
    --md-primary-container-rgb: 255, 217, 227;
    --md-outline-variant-rgb: 213, 194, 198;

    /* 语义色 */
    --md-error: #ba1a1a;
    --md-on-error: #ffffff;
    --md-success: #146b3a;
    --md-warning: #f57c00;

    /* 圆角 */
    --md-radius-xs: 4px;
    --md-radius-sm: 8px;
    --md-radius-md: 12px;
    --md-radius-lg: 16px;
    --md-radius-xl: 28px;
    --md-radius-full: 9999px;

    /* 阴影 */
    --md-elevation-1: 0 1px 2px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
    --md-elevation-2: 0 2px 6px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.08);
    --md-elevation-3: 0 4px 8px rgba(0, 0, 0, 0.12), 0 2px 4px rgba(0, 0, 0, 0.08);

    /* 过渡 */
    --md-transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --md-transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 深色主题 ===== */
[data-theme="dark"] {
    /* 主色调 */
    --md-primary: #ffb1c8;
    --md-on-primary: #5e1133;
    --md-primary-container: #7a2949;
    --md-on-primary-container: #ffd9e3;

    /* 次级色 */
    --md-secondary: #e3bdc4;
    --md-on-secondary: #43292e;
    --md-secondary-container: #5b3f44;
    --md-on-secondary-container: #ffd9e0;

    /* 表面颜色 */
    --md-surface: #1a1216;
    --md-surface-dim: #1a1216;
    --md-surface-variant: #524347;
    --md-on-surface: #ecdee1;
    --md-on-surface-variant: #d5c2c6;
    --md-outline: #9e8c90;
    --md-outline-variant: #524347;

    /* 背景和容器 */
    --md-background: #1a1216;
    --md-surface-container-lowest: #14101;
    --md-surface-container-low: #231c1f;
    --md-surface-container: #272023;
    --md-surface-container-high: #32292d;
    --md-surface-container-highest: #3d3438;

    /* RGB值 */
    --md-surface-container-lowest-rgb: 20, 17, 18;
    --md-surface-container-rgb: 39, 32, 35;
    --md-primary-container-rgb: 122, 41, 73;
    --md-outline-variant-rgb: 82, 67, 71;

    /* 阴影（深色模式下增强） */
    --md-elevation-1: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 4px rgba(0, 0, 0, 0.25);
    --md-elevation-2: 0 2px 8px rgba(0, 0, 0, 0.35), 0 1px 3px rgba(0, 0, 0, 0.3);
    --md-elevation-3: 0 4px 12px rgba(0, 0, 0, 0.4), 0 2px 6px rgba(0, 0, 0, 0.35);
}

/* ===== 护眼主题 ===== */
[data-theme="eye-care"] {
    /* 主色调 - 柔和的绿色 */
    --md-primary: #4caf50;
    --md-on-primary: #ffffff;
    --md-primary-container: #c8e6c9;
    --md-on-primary-container: #1b5e20;

    /* 次级色 */
    --md-secondary: #66bb6a;
    --md-on-secondary: #ffffff;
    --md-secondary-container: #e8f5e9;
    --md-on-secondary-container: #2e7d32;

    /* 表面颜色 - 米黄色系 */
    --md-surface: #f5f3e8;
    --md-surface-dim: #e8e6db;
    --md-surface-variant: #eae8dd;
    --md-on-surface: #2c2a1e;
    --md-on-surface-variant: #5a5847;
    --md-outline: #8b897a;
    --md-outline-variant: #ccc9ba;

    /* 背景和容器 */
    --md-background: #f9f7ec;
    --md-surface-container-lowest: #fffef5;
    --md-surface-container-low: #f5f3e8;
    --md-surface-container: #eae8dd;
    --md-surface-container-high: #e5e3d8;
    --md-surface-container-highest: #dfddd2;

    /* RGB值 */
    --md-surface-container-lowest-rgb: 255, 254, 245;
    --md-surface-container-rgb: 234, 232, 221;
    --md-primary-container-rgb: 200, 230, 201;
    --md-outline-variant-rgb: 204, 201, 186;
}

/* 主题切换过渡动画 */
body {
    transition:
        background-color 0.3s ease,
        color 0.3s ease;
}

/* 主题切换按钮样式 */
.theme-toggle {
    padding: 8px 12px;
    border: none;
    background: var(--md-surface-container-high);
    color: var(--md-on-surface);
    border-radius: var(--md-radius-full);
    cursor: pointer;
    font-size: 18px;
    transition: var(--md-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.theme-toggle:hover {
    background: var(--md-surface-container-highest);
    transform: rotate(20deg);
}

.theme-toggle:active {
    transform: scale(0.95);
}

/* ===== 基础重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family:
        "Noto Sans SC",
        "Roboto",
        -apple-system,
        BlinkMacSystemFont,
        sans-serif;
    background-color: var(--md-background);
    color: var(--md-on-surface);
    line-height: 1.6;
    min-height: 100vh;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent; /* 移除点击高亮 */
    -webkit-touch-callout: none; /* 禁用长按菜单 */
    touch-action: manipulation; /* 优化触摸响应 */
}

a {
    color: var(--md-primary);
    text-decoration: none;
    transition: var(--md-transition);
    -webkit-tap-highlight-color: transparent;
}

a:hover {
    opacity: 0.8;
}

/* 移动端按钮触摸优化 */
button,
.btn,
.btn-sm {
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    cursor: pointer;
}

/* 移动端输入框优化 */
input,
select,
textarea {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    font-size: 16px; /* 防止iOS自动缩放 */
}

/* ===== 头部导航 - MD3风格 ===== */
.header {
    background: var(--md-surface-container-lowest);
    color: var(--md-on-surface);
    padding: 8px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    box-shadow: var(--md-elevation-1);
    position: sticky;
    top: 0;
    z-index: 100;
    flex-wrap: wrap;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0; /* 防止flex项目溢出 */
}

.logo-icon {
    font-size: 24px;
    color: var(--md-primary);
    flex-shrink: 0;
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--md-primary);
    letter-spacing: -0.3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    flex: 1;
    min-width: 0; /* 防止flex项目溢出 */
    justify-content: center;
}

.nav-link {
    color: var(--md-on-surface-variant);
    padding: 8px 12px;
    border-radius: var(--md-radius-xl);
    transition: var(--md-transition);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-link:hover {
    background: var(--md-surface-container-high);
    color: var(--md-on-surface);
}

.nav-link.active {
    background: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
}

/* 导航栏徽章 */
.nav-link {
    position: relative;
}

.nav-badge {
    position: absolute;
    top: 0;
    right: 0;
    transform: translate(40%, -30%);
    background: linear-gradient(135deg, #ff5252, #d32f2f);
    color: white;
    font-size: 10px;
    font-weight: 600;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(211, 47, 47, 0.3);
    animation: badge-pulse 2s infinite;
}

@keyframes badge-pulse {
    0%,
    100% {
        transform: translate(40%, -30%) scale(1);
    }
    50% {
        transform: translate(40%, -30%) scale(1.1);
    }
}

.user-area,
.user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    min-width: 0; /* 防止flex项目溢出 */
}

#username-display {
    font-weight: 500;
    color: var(--md-primary);
    padding: 6px 12px;
    background: var(--md-primary-container);
    border-radius: var(--md-radius-xl);
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
}

/* ===== 按钮样式 - MD3 ===== */
.btn {
    padding: 10px 24px;
    border: none;
    border-radius: var(--md-radius-full);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--md-transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    letter-spacing: 0.1px;
    white-space: nowrap;
    user-select: none;
}

.btn-primary {
    background: var(--md-primary);
    color: var(--md-on-primary);
}

.btn-primary:hover {
    box-shadow: var(--md-elevation-2);
    filter: brightness(1.05);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--md-outline);
    color: var(--md-primary);
}

.btn-outline:hover {
    background: var(--md-surface-container);
}

.btn-tonal {
    background: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
}

.btn-tonal:hover {
    box-shadow: var(--md-elevation-1);
}

.btn-sm {
    padding: 6px 16px;
    font-size: 13px;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.38;
    cursor: not-allowed;
    box-shadow: none !important;
}

.button-group {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

/* ===== 主内容区 ===== */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
    min-height: calc(100vh - 120px);
}

.page {
    display: none;
}

.page.active {
    display: block;
}

/* 标签页样式 */
.tab-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    padding: 10px 20px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: -2px;
}

.tab-btn:hover {
    color: var(--primary-color);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: 500;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.page.active {
    display: block;
    animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-header {
    margin-bottom: 24px;
}

.page-header h2 {
    color: var(--md-on-surface);
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 4px;
    letter-spacing: -0.5px;
}

.page-subtitle {
    color: var(--md-on-surface-variant);
    font-size: 14px;
}

/* ===== MD3输入框样式 ===== */
.md-input,
.md-select,
.md-textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--md-radius-sm);
    font-size: 14px;
    background: var(--md-surface-container-lowest);
    color: var(--md-on-surface);
    transition: var(--md-transition);
    font-family: inherit;
}

.md-input:focus,
.md-select:focus,
.md-textarea:focus {
    outline: none;
    border-color: var(--md-primary);
    box-shadow: 0 0 0 1px var(--md-primary);
}

.md-input::placeholder {
    color: var(--md-outline);
}

.md-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23514347' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.md-textarea {
    resize: vertical;
    min-height: 100px;
}

.input-group {
    margin-bottom: 16px;
}

.form-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.form-row .md-select {
    min-width: 140px;
    width: auto;
}

/* ===== 搜索区域 ===== */
.search-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.search-bar .md-input {
    flex: 1;
}

.search-section {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--md-outline-variant);
}

.search-section h3 {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 16px;
    color: var(--md-on-surface);
}

/* ===== 快速下载卡片 ===== */
.quick-download-card {
    background: rgba(var(--md-surface-container-lowest-rgb, 255, 251, 255), 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--md-radius-lg);
    padding: 24px;
    box-shadow: var(--md-elevation-1);
    border: 1px solid rgba(var(--md-outline-variant-rgb, 131, 115, 119), 0.2);
}

.quick-download-form .input-group {
    margin-bottom: 16px;
}

.quick-download-form .md-input {
    font-size: 16px;
    padding: 16px;
}

#parsed-book-info {
    margin-top: 20px;
}

#parsed-book-info .book-card {
    max-width: 100%;
    background: var(--md-surface-container);
}

/* ===== 书籍卡片 - MD3风格 ===== */
.book-list,
.queue-list,
.library-list,
.shared-list,
.search-results {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

/* 书架单列布局，书库和共享书库多列布局 */
#bookshelf-list,
.bookshelf-list {
    grid-template-columns: 1fr;
    max-width: 900px;
    margin: 0 auto;
}

#library-list,
#shared-list,
.library-list,
.shared-list {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    max-width: 1200px;
    margin: 0 auto;
}

.book-card {
    background: rgba(var(--md-surface-container-lowest-rgb, 255, 251, 255), 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--md-radius-lg);
    overflow: hidden;
    box-shadow: var(--md-elevation-1);
    transition: var(--md-transition);
    display: flex;
    flex-direction: column;
    padding: 10px;
    border: 1px solid rgba(var(--md-outline-variant-rgb, 131, 115, 119), 0.1);
}

.book-card:hover {
    box-shadow: var(--md-elevation-3);
    transform: translateY(-2px);
}

.book-card-body {
    display: flex;
    padding: 16px;
    gap: 16px;
}

.book-cover {
    width: 72px;
    height: 100px;
    object-fit: cover;
    border-radius: var(--md-radius-sm);
    flex-shrink: 0;
    background: var(--md-surface-container);
    transition: opacity 0.3s ease;
    opacity: 0.6;
}

.book-cover.loaded {
    opacity: 1;
}

.book-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.book-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--md-on-surface);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.book-author {
    font-size: 13px;
    color: var(--md-on-surface-variant);
}

.book-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 4px;
}

.book-tag {
    background: var(--md-surface-container-high);
    color: var(--md-on-surface-variant);
    padding: 2px 8px;
    border-radius: var(--md-radius-full);
    font-size: 11px;
}

.book-card-footer {
    padding: 12px 16px;
    background: var(--md-surface-container-low);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    border-top: 1px solid var(--md-outline-variant);
}

/* ===== 搜索结果版本样式 ===== */
.book-versions {
    margin-top: 12px;
    padding: 10px;
    background: var(--md-surface-container-low);
    border-radius: var(--md-radius-sm);
}

.versions-title {
    font-size: 12px;
    color: var(--md-on-surface-variant);
    margin-bottom: 8px;
    font-weight: 500;
}

.version-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    border-bottom: 1px solid var(--md-outline-variant);
}

.version-item:last-child {
    border-bottom: none;
}

.version-info {
    display: flex;
    gap: 8px;
    align-items: center;
}

.chapter-count {
    font-weight: 600;
    color: var(--md-primary);
    font-size: 13px;
}

.total-chapters {
    font-size: 12px;
    color: var(--md-on-surface-variant);
}

.version-actions {
    display: flex;
    gap: 6px;
    align-items: center;
}

.no-shared {
    font-size: 11px;
    color: var(--md-outline);
    padding: 4px 8px;
    background: var(--md-surface-container);
    border-radius: var(--md-radius-full);
}

.btn-xs {
    padding: 4px 10px;
    font-size: 11px;
    border-radius: var(--md-radius-full);
}

/* ===== 队列项样式 - MD3 ===== */
.queue-item {
    background: var(--md-surface-container-lowest);
    border-radius: var(--md-radius-lg);
    padding: 20px;
    box-shadow: var(--md-elevation-1);
}

.queue-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.queue-item-title {
    font-weight: 600;
    font-size: 15px;
    color: var(--md-on-surface);
}

.queue-status {
    padding: 4px 12px;
    border-radius: var(--md-radius-full);
    font-size: 12px;
    font-weight: 500;
}

.queue-status.pending {
    background: #fff3e0;
    color: #e65100;
}

.queue-status.downloading {
    background: #e3f2fd;
    color: #1565c0;
}

.queue-status.completed {
    background: #e8f5e9;
    color: #2e7d32;
}

.queue-status.failed {
    background: #ffebee;
    color: #c62828;
}

.queue-progress {
    height: 4px;
    background: var(--md-surface-container-highest);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 8px;
}

.queue-progress-bar {
    height: 100%;
    background: var(--md-primary);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.queue-progress-text {
    font-size: 13px;
    color: var(--md-on-surface-variant);
}

.queue-progress-container {
    margin-top: 12px;
    padding: 12px;
    background: var(--md-surface-container);
    border-radius: var(--md-radius-sm);
}

/* ===== 共享书库 - MD3 ===== */
.share-notice {
    background: var(--md-surface-container-lowest);
    border-radius: var(--md-radius-lg);
    padding: 0;
    margin-bottom: 24px;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    box-shadow: var(--md-elevation-1);
    overflow: hidden;
}

.notice-icon {
    font-size: 64px;
    padding: 24px;
    background: var(--md-primary-container);
    display: flex;
    align-items: center;
    justify-content: center;
}

.notice-content {
    padding: 24px 24px 24px 0;
    flex: 1;
}

.notice-content h3 {
    color: var(--md-on-surface);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.notice-content ul {
    padding-left: 20px;
    margin-bottom: 16px;
}

.notice-content li {
    margin-bottom: 6px;
    color: var(--md-on-surface-variant);
    font-size: 14px;
}

.share-search {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.share-search .md-input {
    flex: 1;
}

/* ===== 弹窗 - MD3 ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

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

.modal {
    background: rgba(var(--md-surface-container-lowest-rgb, 255, 251, 255), 0.95);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-radius: var(--md-radius-xl);
    width: 90%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalIn 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--md-elevation-3);
    border: 1px solid rgba(var(--md-outline-variant-rgb, 213, 194, 198), 0.2);
}

.modal-lg {
    max-width: 560px;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-header {
    padding: 24px 24px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: var(--md-on-surface);
    font-size: 20px;
    font-weight: 600;
}

.modal-close {
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--md-on-surface-variant);
    cursor: pointer;
    border-radius: var(--md-radius-full);
    transition: var(--md-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--md-surface-container-high);
    color: var(--md-error);
}

.modal-body {
    padding: 0 24px 24px;
}

/* ===== 表单样式 - MD3 ===== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 13px;
    color: var(--md-on-surface-variant);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--md-radius-sm);
    font-size: 14px;
    outline: none;
    transition: var(--md-transition);
    font-family: inherit;
    background: var(--md-surface-container-lowest);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--md-primary);
    box-shadow: 0 0 0 1px var(--md-primary);
}

.form-hint {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: var(--md-on-surface-variant);
    opacity: 0.7;
}

.form-error {
    color: var(--md-error);
    font-size: 12px;
    margin-bottom: 12px;
    min-height: 18px;
}

/* ===== 设置页面 - MD3 ===== */
.settings-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 24px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--md-outline-variant);
}

.settings-tab {
    padding: 10px 20px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--md-on-surface-variant);
    border-radius: var(--md-radius-full);
    transition: var(--md-transition);
}

.settings-tab:hover {
    background: var(--md-surface-container);
    color: var(--md-on-surface);
}

.settings-tab.active {
    background: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
}

.settings-content {
    display: none;
}

.settings-content.active {
    display: block;
}

.settings-content h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--md-on-surface);
}

.settings-desc {
    color: var(--md-on-surface-variant);
    font-size: 13px;
    margin-bottom: 20px;
    line-height: 1.5;
}

.cookie-status {
    background: var(--md-surface-container);
    padding: 12px 16px;
    border-radius: var(--md-radius-sm);
    margin: 12px 0;
    font-size: 13px;
}

.cookie-status.success {
    background: #e8f5e9;
    color: #2e7d32;
}

.cookie-status.error {
    background: #ffebee;
    color: #c62828;
}

.share-status {
    background: var(--md-surface-container);
    padding: 16px;
    border-radius: var(--md-radius-md);
}

.status-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
}

.status-item:not(:last-child) {
    border-bottom: 1px solid var(--md-outline-variant);
}

.status-label {
    color: var(--md-on-surface-variant);
    font-size: 13px;
}

.status-value {
    font-weight: 500;
    color: var(--md-primary);
}

/* ===== 空状态 ===== */
.empty-message {
    text-align: center;
    padding: 48px 24px;
    color: var(--md-outline);
    grid-column: 1 / -1;
    font-size: 14px;
}

/* ===== 无限滚动加载更多 ===== */
.load-more-trigger,
.load-more-end {
    grid-column: 1 / -1;
    text-align: center;
    padding: 24px;
    color: var(--md-outline);
    font-size: 14px;
}

.load-more-trigger {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.loading-dots {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.loading-dots::after {
    content: "";
    width: 16px;
    height: 16px;
    border: 2px solid var(--md-outline-variant);
    border-top-color: var(--md-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.load-more-end {
    color: var(--md-outline-variant);
    font-size: 13px;
}

/* ===== 登录提示 ===== */
.login-required {
    text-align: center;
    padding: 48px;
    background: var(--md-surface-container-lowest);
    border-radius: var(--md-radius-lg);
}

.login-required p {
    color: var(--md-on-surface-variant);
    margin-bottom: 16px;
}

/* ===== 认证切换 ===== */
.auth-switch {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--md-outline-variant);
    font-size: 14px;
    color: var(--md-on-surface-variant);
}

.auth-switch a {
    font-weight: 500;
    color: var(--md-primary);
}

/* ===== Toast消息 - MD3 ===== */
.toast-container {
    position: fixed;
    top: 72px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 14px 20px;
    background: var(--md-on-surface);
    color: var(--md-surface);
    border-radius: var(--md-radius-sm);
    box-shadow: var(--md-elevation-3);
    animation:
        toastIn 0.25s ease-out,
        toastOut 0.25s ease-in 2.5s forwards;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    max-width: 360px;
}

.toast.success {
    background: #1b5e20;
}

.toast.error {
    background: var(--md-error);
}

.toast.warning {
    background: #e65100;
}

.toast.info {
    background: #1565c0;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes toastOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

/* ===== 底部 - MD3 ===== */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--md-outline);
    background: var(--md-surface-container-low);
    font-size: 13px;
}

/* ===== 响应式适配 - 移动端优化 ===== */

/* 平板设备 */
@media (max-width: 900px) {
    .header {
        flex-wrap: wrap;
        gap: 12px;
        padding: 10px 16px;
    }

    .logo-text {
        font-size: 16px;
    }

    .nav {
        order: 3;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 6px;
    }

    .nav-link {
        padding: 7px 10px;
        font-size: 12px;
    }

    .user-area,
    .user-info {
        flex-wrap: wrap;
        gap: 6px;
    }

    .btn-sm {
        padding: 5px 12px;
        font-size: 12px;
    }

    .book-list,
    .queue-list,
    .search-results {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 12px;
    }

    /* 书架始终单列，书库和共享书库两列 */
    #bookshelf-list,
    .bookshelf-list {
        grid-template-columns: 1fr;
    }

    #library-list,
    #shared-list,
    .library-list,
    .shared-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .main-content {
        padding: 16px;
    }

    .page-header h2 {
        font-size: 24px;
    }
}

/* 手机横屏/小平板 */
@media (max-width: 768px) {
    body {
        font-size: 13px;
    }

    .header {
        padding: 8px 12px;
    }

    .logo {
        gap: 8px;
    }

    .logo-icon {
        font-size: 20px;
    }

    .logo-text {
        font-size: 15px;
    }

    .nav {
        order: 3;
        width: 100%;
        justify-content: center;
        gap: 4px;
    }

    .nav-link {
        padding: 6px 10px;
        font-size: 12px;
    }

    .user-area,
    .user-info {
        gap: 6px;
    }

    #username-display {
        font-size: 12px;
        padding: 4px 10px;
    }

    .btn {
        padding: 8px 16px;
        font-size: 13px;
    }

    .btn-sm {
        padding: 4px 10px;
        font-size: 11px;
    }

    .main-content {
        padding: 12px;
    }

    .page-header h2 {
        font-size: 22px;
    }

    .page-subtitle {
        font-size: 13px;
    }

    .unified-search-card {
        padding: 16px;
    }

    .unified-search-form {
        flex-wrap: wrap;
    }

    .unified-search-form .input-group {
        width: 100%;
        min-width: 100%;
    }

    .unified-search-form .button-group {
        width: 100%;
        flex-wrap: wrap;
    }

    .unified-search-form .md-select,
    .unified-search-form .btn {
        flex: 1;
        min-width: calc(50% - 4px);
    }

    .book-list,
    .queue-list,
    .search-results {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    /* 书架始终单列，书库和共享书库两列 */
    #bookshelf-list,
    .bookshelf-list {
        grid-template-columns: 1fr;
    }

    #library-list,
    #shared-list,
    .library-list,
    .shared-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .book-card {
        padding: 10px;
    }

    .book-card-body {
        padding: 12px;
        gap: 12px;
    }

    .book-cover {
        width: 60px;
        height: 84px;
    }

    .book-title {
        font-size: 14px;
    }

    .book-author {
        font-size: 12px;
    }

    .book-tag {
        font-size: 10px;
        padding: 2px 6px;
    }

    .book-card-footer {
        padding: 10px 12px;
        gap: 6px;
    }

    .filter-bar {
        flex-direction: column;
        gap: 10px;
        padding: 12px;
    }

    .filter-bar .md-select {
        width: 100%;
    }

    .modal {
        width: 95%;
        max-height: 90vh;
    }

    .modal-header {
        padding: 20px 20px 16px;
    }

    .modal-header h3 {
        font-size: 18px;
    }

    .modal-body {
        padding: 0 20px 20px;
    }

    .notice-icon {
        font-size: 48px;
        padding: 20px;
    }

    .notice-content {
        padding: 20px 20px 20px 0;
    }

    .notice-content h3 {
        font-size: 16px;
    }

    .toast-container {
        right: 16px;
        top: 60px;
    }

    .toast {
        max-width: 320px;
        font-size: 13px;
    }
}

/* 手机竖屏 */
@media (max-width: 600px) {
    .header {
        padding: 6px 10px;
    }

    .logo {
        gap: 6px;
    }

    .logo-icon {
        font-size: 18px;
    }

    .logo-text {
        font-size: 14px;
    }

    .user-info {
        font-size: 11px;
    }

    #username-display {
        font-size: 11px;
        padding: 4px 8px;
    }

    .nav {
        order: 3;
        width: 100%;
        justify-content: flex-start;
        gap: 4px;
    }

    .nav-link {
        padding: 6px 8px;
        font-size: 11px;
    }

    .btn {
        padding: 7px 14px;
        font-size: 12px;
    }

    .btn-sm {
        padding: 4px 8px;
        font-size: 10px;
    }

    .main-content {
        padding: 10px;
    }

    .page-header h2 {
        font-size: 20px;
    }

    .page-subtitle {
        font-size: 12px;
    }

    .unified-search-card {
        padding: 12px;
    }

    .unified-search-form .input-group .md-input {
        height: 44px;
        font-size: 14px;
    }

    .unified-search-form .md-select {
        height: 44px;
        font-size: 13px;
    }

    .unified-search-form .btn {
        height: 44px;
        font-size: 13px;
        width: 100%;
    }

    .book-list,
    .queue-list,
    .search-results {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    /* 书架始终单列，书库和共享书库两列 */
    #bookshelf-list,
    .bookshelf-list {
        grid-template-columns: 1fr;
    }

    #library-list,
    #shared-list,
    .library-list,
    .shared-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .book-card {
        padding: 8px;
    }

    .book-card-body {
        padding: 10px;
        gap: 10px;
    }

    .book-cover {
        width: 54px;
        height: 75px;
    }

    .book-title {
        font-size: 13px;
    }

    .book-author {
        font-size: 11px;
    }

    .book-tag {
        font-size: 9px;
    }

    .book-card-footer {
        padding: 8px 10px;
    }

    .modal {
        width: 95%;
        margin: 10px;
        max-height: 92vh;
    }

    .modal-header {
        padding: 16px;
    }

    .modal-header h3 {
        font-size: 16px;
    }

    .modal-body {
        padding: 0 16px 16px;
    }

    .notice-icon {
        font-size: 40px;
        padding: 16px;
    }

    .notice-content {
        padding: 16px 16px 16px 0;
    }

    .notice-content h3 {
        font-size: 15px;
    }

    .notice-content li {
        font-size: 13px;
    }

    .settings-tab {
        padding: 8px 14px;
        font-size: 13px;
    }

    .form-group label {
        font-size: 12px;
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 12px 14px;
        font-size: 13px;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .header {
        padding: 6px 8px;
    }

    .logo-icon {
        font-size: 16px;
    }

    .logo-text {
        font-size: 13px;
    }

    .nav-link {
        padding: 5px 6px;
        font-size: 10px;
    }

    .user-area .btn,
    .user-info .btn {
        padding: 6px 10px;
        font-size: 11px;
    }

    .unified-search-card {
        padding: 12px;
    }

    .unified-search-form .button-group {
        flex-direction: column;
        gap: 8px;
    }

    .unified-search-form .md-select,
    .unified-search-form .btn {
        width: 100%;
        min-width: 100%;
    }

    .book-list,
    .queue-list,
    .search-results {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
    }

    /* 书架始终单列，书库和共享书库两列 */
    #bookshelf-list,
    .bookshelf-list {
        grid-template-columns: 1fr;
    }

    #library-list,
    #shared-list,
    .library-list,
    .shared-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .book-card {
        padding: 6px;
    }

    .book-card-body {
        padding: 8px;
        gap: 8px;
    }

    .book-cover {
        width: 48px;
        height: 67px;
    }

    .book-title {
        font-size: 12px;
    }

    .book-author {
        font-size: 10px;
    }

    .book-tag {
        font-size: 8px;
        padding: 1px 4px;
    }

    .notice-content {
        flex-direction: column;
    }

    .notice-icon {
        padding: 12px;
        font-size: 32px;
    }

    .rankings-tabs {
        padding: 6px;
    }

    .ranking-tab {
        font-size: 11px;
        padding: 6px 10px;
    }
}

/* ===== 快速下载区域 ===== */
.quick-download-section {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 20px;
    margin: 20px 0;
    border: 1px solid var(--border-color);
}

.quick-download-section h3 {
    margin-bottom: 15px;
    color: var(--primary-dark);
    font-size: 16px;
}

.quick-download-form {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.quick-download-form input[type="text"] {
    flex: 1;
    min-width: 300px;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    transition: var(--transition);
}

.quick-download-form input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--shadow-color);
}

.quick-download-form select {
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    background: white;
    cursor: pointer;
}

#parsed-book-info {
    margin-top: 15px;
}

#parsed-book-info .book-card {
    max-width: 500px;
}

/* ===== 下载记录列表样式 ===== */
.history-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--md-surface-container-lowest);
    border-radius: var(--md-radius-md);
    transition: var(--md-transition);
}

.history-item:hover {
    background: var(--md-surface-container);
}

.history-info {
    flex: 1;
    min-width: 0;
}

.history-title {
    font-weight: 500;
    color: var(--md-on-surface);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.history-meta {
    display: flex;
    gap: 16px;
    margin-top: 4px;
    font-size: 12px;
    color: var(--md-on-surface-variant);
}

.history-time {
    font-size: 12px;
    color: var(--md-outline);
    white-space: nowrap;
}

/* ===== 共享书籍信息 ===== */
.book-share-info {
    display: flex;
    gap: 12px;
    margin-top: 6px;
    font-size: 11px;
    color: var(--md-outline);
}

.book-share-info .uploader {
    color: var(--md-primary);
}

.book-share-info .download-count {
    color: var(--md-success);
    font-weight: 500;
}

/* 共享书库卡片边框 */
.shared-list .book-card {
    position: relative;
    border-left: 3px solid var(--md-primary);
}

@media (max-width: 768px) {
    .quick-download-form {
        flex-direction: column;
    }

    .quick-download-form input[type="text"] {
        min-width: 100%;
    }

    .quick-download-form select,
    .quick-download-form .btn {
        width: 100%;
    }
}

/* ===== 筛选器样式 - MD3 ===== */
.filter-bar {
    display: flex;
    gap: 12px;
    padding: 12px 16px;
    background: var(--md-surface-container-low);
    border-radius: var(--md-radius-lg);
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-bar .md-select {
    min-width: 120px;
    width: auto;
    padding: 10px 36px 10px 12px;
    background: var(--md-surface-container-lowest);
}

/* ===== 统一搜索栏样式 (MD3 毛玑璃风格) ===== */
.hero-search-card {
    position: relative;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.95) 0%,
        rgba(255, 245, 248, 0.9) 50%,
        rgba(255, 235, 240, 0.85) 100%
    );
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    padding: 20px 24px;
    border-radius: 16px;
    box-shadow:
        0 4px 20px rgba(196, 69, 105, 0.1),
        0 1px 4px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    overflow: hidden;
}

.hero-search-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #ff6b9d 0%, #d81b60 50%, #c44569 100%);
    border-radius: 16px 16px 0 0;
}

.search-header {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 16px;
}

.search-header .search-icon {
    font-size: 1.5rem;
    filter: drop-shadow(0 2px 4px rgba(196, 69, 105, 0.3));
}

.search-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    background: linear-gradient(135deg, #d81b60 0%, #c44569 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.search-form {
    display: flex;
    gap: 16px;
    align-items: stretch;
    flex-wrap: wrap;
}

.search-input-wrapper {
    flex: 1;
    min-width: 280px;
    position: relative;
    display: flex;
    align-items: center;
}

.search-input-wrapper .input-icon {
    position: absolute;
    left: 16px;
    font-size: 1.2rem;
    pointer-events: none;
    z-index: 1;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.search-input {
    width: 100%;
    height: 54px;
    padding: 0 20px 0 50px;
    font-size: 15px;
    border: 2px solid rgba(196, 69, 105, 0.15);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--md-on-surface);
    outline: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow:
        0 2px 8px rgba(0, 0, 0, 0.04),
        inset 0 1px 2px rgba(0, 0, 0, 0.02);
}

.search-input::placeholder {
    color: var(--md-on-surface-variant);
    opacity: 0.7;
}

.search-input:hover {
    border-color: rgba(196, 69, 105, 0.3);
    background: rgba(255, 255, 255, 1);
}

.search-input:focus {
    border-color: var(--md-primary);
    box-shadow:
        0 0 0 4px rgba(216, 27, 96, 0.1),
        0 4px 12px rgba(196, 69, 105, 0.15);
    background: rgba(255, 255, 255, 1);
}

.search-input:focus + .input-icon,
.search-input-wrapper:focus-within .input-icon {
    opacity: 1;
    transform: scale(1.1);
}

/* ===== 搜索历史下拉框 ===== */
.search-history-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-radius: 16px;
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.12),
        0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(196, 69, 105, 0.1);
    z-index: 100;
    overflow: hidden;
    animation: dropdownShow 0.2s ease-out;
}

@keyframes dropdownShow {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.search-history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: linear-gradient(135deg, rgba(255, 235, 240, 0.6), rgba(255, 245, 248, 0.4));
    border-bottom: 1px solid rgba(196, 69, 105, 0.08);
    font-size: 13px;
    color: var(--md-on-surface-variant);
}

.search-history-header span {
    font-weight: 500;
}

.clear-history-btn {
    background: none;
    border: none;
    color: var(--md-primary);
    font-size: 12px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.clear-history-btn:hover {
    background: rgba(216, 27, 96, 0.1);
}

.search-history-list {
    max-height: 280px;
    overflow-y: auto;
}

.search-history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.search-history-item:last-child {
    border-bottom: none;
}

.search-history-item:hover {
    background: linear-gradient(135deg, rgba(255, 235, 240, 0.4), rgba(255, 245, 248, 0.3));
}

.history-keyword {
    font-size: 14px;
    color: var(--md-on-surface);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.remove-history-btn {
    background: none;
    border: none;
    color: var(--md-outline);
    font-size: 18px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 50%;
    transition: all 0.2s ease;
    line-height: 1;
    opacity: 0;
}

.search-history-item:hover .remove-history-btn {
    opacity: 1;
}

.remove-history-btn:hover {
    background: rgba(216, 27, 96, 0.1);
    color: var(--md-error);
}

.search-actions {
    display: flex;
    gap: 12px;
    align-items: stretch;
}

.format-selector {
    display: flex;
    align-items: center;
}

.format-select {
    height: 54px;
    min-width: 120px;
    padding: 0 36px 0 14px;
    font-size: 14px;
    font-weight: 500;
    border: 2px solid rgba(196, 69, 105, 0.15);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.9)
        url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%23C44569' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e")
        no-repeat right 10px center/16px;
    cursor: pointer;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    transition: all 0.3s ease;
    color: var(--md-on-surface);
}

.format-select:hover {
    border-color: rgba(196, 69, 105, 0.3);
    background-color: rgba(255, 255, 255, 1);
}

.format-select:focus {
    border-color: var(--md-primary);
    box-shadow: 0 0 0 3px rgba(216, 27, 96, 0.1);
}

.action-buttons {
    display: flex;
    gap: 10px;
}

.action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 44px;
    padding: 0 20px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    letter-spacing: -0.2px;
}

.action-btn .btn-icon {
    font-size: 1rem;
    transition: transform 0.25s ease;
}

.action-btn:hover .btn-icon {
    transform: scale(1.1);
}

.action-btn::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.25s ease;
}

.action-btn:hover::after {
    opacity: 1;
}

/* 解析按钮 - Apple 次要风格 */
.action-btn-outline {
    background: rgba(120, 120, 128, 0.12);
    color: #007AFF;
    border: none;
    box-shadow: none;
}

.action-btn-outline:hover {
    background: rgba(120, 120, 128, 0.18);
    transform: scale(1.02);
}

.action-btn-outline:active {
    transform: scale(0.98);
    background: rgba(120, 120, 128, 0.24);
}

/* 下载按钮 - Apple 主要风格 */
.action-btn-primary {
    background: #007AFF;
    color: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.08);
}

.action-btn-primary:hover {
    background: #0051D5;
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3), 0 2px 6px rgba(0, 0, 0, 0.15);
    transform: scale(1.02);
}

.action-btn-primary:active {
    transform: scale(0.98);
    background: #0040A8;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

/* 搜索按钮 - Apple 强调风格 */
.action-btn-accent {
    background: #FF3B30;
    color: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.08);
}

.action-btn-accent:hover {
    background: #E52D22;
    box-shadow: 0 4px 12px rgba(255, 59, 48, 0.3), 0 2px 6px rgba(0, 0, 0, 0.15);
    transform: scale(1.02);
}

.action-btn-accent:active {
    transform: scale(0.98);
    background: #CC2819;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

/* 解析结果区域 */
.parsed-info {
    margin-top: 16px;
}

.parsed-info:not(:empty) {
    padding-top: 16px;
    border-top: 1px solid rgba(196, 69, 105, 0.1);
}

/* 首页快捷功能区域 */
.quick-access-section {
    margin-bottom: 24px;
}

.quick-access-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 16px;
    margin-top: 12px;
}

.quick-access-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 12px;
    background: var(--md-surface-container-low);
    border-radius: 12px;
    text-decoration: none;
    color: var(--md-on-surface);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
    position: relative;
    overflow: hidden;
}

.quick-access-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--md-primary), var(--md-tertiary));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.quick-access-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.quick-access-card:hover::before {
    transform: scaleX(1);
}

.access-icon {
    font-size: 24px;
    margin-bottom: 8px;
}

.access-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.access-desc {
    font-size: 12px;
    color: var(--md-on-surface-variant);
}

/* 热门推荐区域 */
.popular-books-section {
    margin-bottom: 24px;
}

.popular-books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
    margin-top: 12px;
}

/* 首页热门推荐卡片样式 - 独立于其他页面 */
.popular-book-card {
    background: var(--md-surface-container-low);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
}

.popular-book-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* 为首页热门推荐卡片单独设置封面样式，避免影响其他页面 */
.popular-book-card .book-cover {
    width: 100%;
    height: 180px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}

.popular-book-card .book-cover::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
}

.book-info {
    padding: 12px;
}

.book-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 最近更新区域 */
.recent-books-section {
    margin-bottom: 24px;
}

.recent-books-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 12px;
}

.skeleton-row {
    height: 60px;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: 12px;
}

/* 骨架屏动画 */
@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* 书籍卡片样式 */
/* 恢复原有的书籍卡片样式，避免影响其他页面 */
.book-card {
    background: rgba(var(--md-surface-container-lowest-rgb, 255, 251, 255), 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--md-radius-lg);
    overflow: hidden;
    box-shadow: var(--md-elevation-1);
    transition: var(--md-transition);
    display: flex;
    flex-direction: column;
    padding: 10px;
    border: 1px solid rgba(var(--md-outline-variant-rgb, 131, 115, 119), 0.1);
}

.book-card:hover {
    box-shadow: var(--md-elevation-3);
    transform: translateY(-2px);
}



.book-author {
    font-size: 12px;
    color: var(--md-on-surface-variant);
    margin-bottom: 8px;
}

.book-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-item {
    font-size: 11px;
    color: var(--md-primary);
    font-weight: 500;
}

/* 最近更新书籍项 */
.recent-book-item {
    display: flex;
    align-items: center;
    padding: 12px;
    background: var(--md-surface-container-low);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.recent-book-item:hover {
    background: var(--md-surface-container);
    transform: translateX(4px);
}

.book-cover-small {
    width: 40px;
    height: 56px;
    border-radius: 6px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    flex-shrink: 0;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.book-details {
    flex: 1;
    margin: 0 12px;
    min-width: 0;
}

.book-details .book-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--md-on-surface);
}

.book-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
}

.book-meta .author {
    color: var(--md-on-surface-variant);
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.book-meta .update-time {
    color: var(--md-primary);
    flex-shrink: 0;
    margin-left: 12px;
}

.book-arrow {
    font-size: 20px;
    color: var(--md-on-surface-variant);
    transition: transform 0.2s ease;
}

.recent-book-item:hover .book-arrow {
    transform: translateX(4px);
    color: var(--md-primary);
}

/* 骨架屏样式 */
.skeleton-card {
    height: 220px;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: 12px;
}

/* 响应式设计 */
@media (max-width: 968px) {
    .hero-search-card {
        padding: 16px 18px;
        border-radius: 14px;
        margin-bottom: 16px;
    }

    .search-form {
        flex-direction: column;
        gap: 12px;
    }

    .search-input-wrapper {
        min-width: 100%;
    }

    .search-actions {
        flex-wrap: wrap;
        width: 100%;
    }

    .format-selector {
        flex: 1;
        min-width: 100%;
    }

    .format-select {
        width: 100%;
    }

    .action-buttons {
        flex: 1;
        width: 100%;
    }

    .action-btn {
        flex: 1;
        min-width: 0;
    }
}

@media (max-width: 480px) {
    .hero-search-card {
        padding: 14px 16px;
        border-radius: 12px;
        margin-bottom: 14px;
    }

    .search-header h3 {
        font-size: 1rem;
    }

    .search-input {
        height: 48px;
        font-size: 14px;
    }

    .format-select,
    .action-btn {
        height: 44px;
    }

    .action-buttons {
        flex-direction: column;
        gap: 8px;
    }

    .action-btn {
        width: 100%;
    }

    .action-btn .btn-text {
        display: inline;
    }
    
    .quick-access-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .popular-books-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    
    .access-icon {
        font-size: 20px;
    }
    
    .access-title {
        font-size: 13px;
    }
    
    .access-desc {
        font-size: 11px;
    }
}

/* 旧版兼容样式 */
@media (max-width: 768px) {
    .filter-bar {
        flex-direction: column;
        gap: 10px;
    }

    .filter-select {
        width: 100%;
    }
    
    .quick-access-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .popular-books-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
}

/* ===== 设置页样式 ===== */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
    padding: 12px 0;
}

.md-checkbox {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--md-primary);
}

.checkbox-label span {
    font-size: 15px;
    color: var(--md-on-surface);
}

.checkbox-label:hover span {
    color: var(--md-primary);
}

.share-status {
    background: var(--md-surface-container-low);
    padding: 16px;
    border-radius: var(--md-radius-md);
    border: 1px solid var(--md-outline-variant);
}

.status-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--md-outline-variant);
}

.status-item:last-child {
    border-bottom: none;
}

.status-label {
    font-size: 14px;
    color: var(--md-on-surface-variant);
    font-weight: 500;
}

.status-value {
    font-size: 14px;
    color: var(--md-on-surface);
    font-weight: 600;
}

.settings-desc {
    color: var(--md-on-surface-variant);
    font-size: 13px;
    margin-bottom: 16px;
    line-height: 1.6;
}

/* ===== 排行榜样式 ===== */
.rankings-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.ranking-tab {
    padding: 10px 20px;
    border: 1px solid var(--md-outline-variant);
    background: var(--md-surface-container-lowest);
    border-radius: var(--md-radius-full);
    color: var(--md-on-surface-variant);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    touch-action: manipulation; /* 优化移动端触摸响应 */
    user-select: none; /* 防止文本选中 */
    -webkit-tap-highlight-color: transparent; /* 移除移动端点击高亮 */
}

.ranking-tab:hover {
    background: var(--md-surface-container);
}

.ranking-tab:active {
    transform: scale(0.95); /* 点击时略微缩小 */
    background: var(--md-surface-container-high);
}

.ranking-tab.active {
    background: var(--md-primary);
    color: var(--md-on-primary);
    border-color: var(--md-primary);
}

.ranking-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ranking-item {
    background: var(--md-surface-container-lowest);
    border-radius: var(--md-radius-md);
    padding: 16px;
    display: flex;
    gap: 16px;
    align-items: center;
    transition: var(--md-transition);
    cursor: pointer;
}

.ranking-item:hover {
    box-shadow: var(--md-elevation-2);
    transform: translateY(-1px);
}

.ranking-number {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    color: var(--md-on-surface-variant);
    border-radius: var(--md-radius-sm);
    flex-shrink: 0;
}

.ranking-number.top1 {
    background: linear-gradient(135deg, #ffd700, #ffa500);
    color: white;
}

.ranking-number.top2 {
    background: linear-gradient(135deg, #c0c0c0, #a0a0a0);
    color: white;
}

.ranking-number.top3 {
    background: linear-gradient(135deg, #cd7f32, #a0522d);
    color: white;
}

.ranking-cover {
    width: 60px;
    height: 84px;
    object-fit: cover;
    border-radius: var(--md-radius-sm);
    flex-shrink: 0;
    background: var(--md-surface-container);
    cursor: pointer;
}

.ranking-cover:hover {
    box-shadow: var(--md-elevation-3);
}

.ranking-info {
    flex: 1;
    min-width: 0;
}

.ranking-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--md-on-surface);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 4px;
    cursor: pointer;
}

.ranking-title:hover {
    color: var(--md-primary);
}

.ranking-author {
    font-size: 13px;
    color: var(--md-on-surface-variant);
    margin-bottom: 6px;
}

.ranking-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--md-outline);
}

.ranking-stats {
    text-align: right;
    flex-shrink: 0;
}

.ranking-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--md-primary);
    margin-bottom: 2px;
}

.ranking-label {
    font-size: 11px;
    color: var(--md-on-surface-variant);
}

/* ===== 失败章节面板 ===== */
.failed-chapters-panel {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 400px;
    max-height: 500px;
    background: var(--md-surface-container-lowest);
    border-radius: var(--md-radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    animation: slideInUp 0.3s ease;
}

@keyframes slideInUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.failed-chapters-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--md-outline-variant);
}

.failed-chapters-header h4 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--md-error);
}

.btn-close-failed {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--md-on-surface-variant);
    font-size: 24px;
    cursor: pointer;
    border-radius: var(--md-radius-sm);
    transition: var(--md-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-close-failed:hover {
    background: var(--md-surface-container-high);
}

.failed-chapters-list {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    max-height: 350px;
}

.failed-chapter-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--md-surface-container);
    border-radius: var(--md-radius-md);
    margin-bottom: 8px;
    transition: var(--md-transition);
}

.failed-chapter-item:hover {
    background: var(--md-surface-container-high);
}

.failed-chapter-info {
    flex: 1;
    min-width: 0;
}

.failed-chapter-title {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--md-on-surface);
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.failed-chapter-error {
    display: block;
    font-size: 12px;
    color: var(--md-error);
}

.retry-btn {
    flex-shrink: 0;
    white-space: nowrap;
}

.failed-chapters-footer {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--md-outline-variant);
}

.failed-chapters-footer .btn {
    flex: 1;
}

/* 模态框样式增强 */
.modal-lg {
    max-width: 600px;
}

.modal-header {
    background: linear-gradient(135deg, var(--md-primary) 0%, #c2185b 100%);
    color: white;
    border-radius: 16px 16px 0 0;
    padding: 20px 24px;
}

.modal-close {
    color: white;
    opacity: 0.8;
}

.modal-close:hover {
    opacity: 1;
}

/* 表单组增强 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--md-on-surface);
}

.avatar-upload {
    display: flex;
    align-items: center;
    gap: 16px;
}

.avatar-preview {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    border: 2px dashed var(--md-outline);
}

.preference-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.checkbox-option {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.checkbox-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--md-primary);
}

.help-text {
    font-size: 12px;
    color: var(--md-on-surface-variant);
    margin-top: 4px;
}

/* 按钮组增强 */
.button-group {
    display: flex;
    gap: 12px;
}

.btn-block {
    flex: 1;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .profile-content {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }

    .profile-info {
        align-items: center;
    }

    .profile-tags {
        justify-content: center;
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .achievements-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }

    .quick-actions-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }

    .avatar-upload {
        flex-direction: column;
    }

    .button-group {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .achievements-grid,
    .quick-actions-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .modal-lg {
        margin: 16px;
        max-width: calc(100% - 32px);
    }
}

/* ===== 我的页面样式 ===== */

/* 用户头部卡片 */
.profile-header-card {
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 24px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.profile-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.profile-content {
    position: relative;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.profile-avatar {
    position: relative;
    flex-shrink: 0;
}

.avatar-ring {
    position: absolute;
    top: -8px;
    left: -8px;
    right: -8px;
    bottom: -8px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffd700, #ffa500);
    animation: avatarPulse 3s ease-in-out infinite;
}

@keyframes avatarPulse {
    0%,
    100% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.avatar-inner {
    position: relative;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, #fff, #f0f0f0);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    border: 3px solid white;
}

.avatar-text {
    font-size: 32px;
}

.avatar-badge {
    position: absolute;
    bottom: 0;
    right: 0;
    background: linear-gradient(135deg, #ffd700, #ffa500);
    color: white;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.profile-info {
    flex: 1;
    color: white;
}

.profile-name {
    font-size: 22px;
    font-weight: 600;
    margin: 0 0 6px 0;
    color: white;
}

.profile-bio {
    font-size: 13px;
    opacity: 0.9;
    margin: 0 0 8px 0;
}

.profile-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.tag-primary {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.tag-accent {
    background: rgba(255, 215, 0, 0.3);
    border: 1px solid rgba(255, 215, 0, 0.4);
}

.profile-actions {
    flex-shrink: 0;
}

.profile-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    color: white;
    font-weight: 500;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.profile-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* 成就徽章区域 */
.achievements-section {
    margin-bottom: 12px;
}

.section-title-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin: 0;
}

.title-icon {
    font-size: 16px;
}

.section-more {
    font-size: 13px;
    color: var(--md-primary);
    text-decoration: none;
    transition: all 0.3s;
}

.section-more:hover {
    transform: translateX(4px);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(75px, 1fr));
    gap: 8px;
}

.achievement-badge {
    background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
    border-radius: 8px;
    padding: 8px 6px;
    text-align: center;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.achievement-badge::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    transition: all 0.6s;
    opacity: 0;
}

.achievement-badge:hover::before {
    opacity: 1;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        left: -50%;
    }
    100% {
        left: 150%;
    }
}

.achievement-badge.unlocked {
    background: linear-gradient(135deg, #fff5f8 0%, #ffe0eb 100%);
    border-color: rgba(233, 30, 99, 0.2);
    box-shadow: 0 4px 15px rgba(233, 30, 99, 0.15);
}

.achievement-badge.unlocked:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 6px 20px rgba(233, 30, 99, 0.2);
}

.achievement-badge:not(.unlocked) {
    filter: grayscale(1);
    opacity: 0.6;
}

.achievement-badge:not(.unlocked):hover {
    filter: grayscale(0.5);
    opacity: 0.8;
}

.badge-icon {
    font-size: 18px;
    margin-bottom: 3px;
}

.badge-name {
    font-weight: 600;
    font-size: 10px;
    color: var(--md-on-surface);
    margin-bottom: 2px;
}

.badge-desc {
    font-size: 9px;
    color: var(--md-on-surface-variant);
}

/* 数据统计仪表盘 */
.stats-dashboard {
    margin-bottom: 16px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(95px, 1fr));
    gap: 8px;
    margin-bottom: 16px;
}

.stat-card {
    position: relative;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 245, 248, 0.9) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 10px;
    padding: 10px;
    box-shadow: 0 1px 4px rgba(233, 30, 99, 0.08);
    border: 1px solid rgba(233, 30, 99, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    overflow: hidden;
}

.stat-card::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transform: rotate(45deg);
    transition: all 0.6s;
    opacity: 0;
}

.stat-card:hover::before {
    opacity: 1;
    animation: cardShine 2s infinite;
}

@keyframes cardShine {
    0% {
        right: -50%;
    }
    100% {
        right: 150%;
    }
}

.stat-card:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 6px 18px rgba(233, 30, 99, 0.12);
    border-color: rgba(233, 30, 99, 0.15);
}

/* 统计卡片颜色变体 */
.stat-card-gradient-1 {
    background: linear-gradient(135deg, #fff5f8 0%, #ffe0eb 100%);
}
.stat-card-gradient-2 {
    background: linear-gradient(135deg, #f8f0ff 0%, #e8d5ff 100%);
}
.stat-card-gradient-3 {
    background: linear-gradient(135deg, #f0f8ff 0%, #d5e8ff 100%);
}
.stat-card-gradient-4 {
    background: linear-gradient(135deg, #f0fff4 0%, #d5ffe0 100%);
}
.stat-card-gradient-5 {
    background: linear-gradient(135deg, #fff8f0 0%, #ffe8d5 100%);
}
.stat-card-gradient-6 {
    background: linear-gradient(135deg, #fff0f8 0%, #ffd5e8 100%);
}

.stat-icon-lg {
    font-size: 1.2rem;
    margin-bottom: 3px;
}

.stat-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    align-items: flex-start;
    flex: 1;
    width: 100%;
}

.stat-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--md-primary);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--md-on-surface-variant);
    font-weight: 500;
}

.stat-trend {
    position: absolute;
    top: 8px;
    right: 8px;
    font-size: 9px;
    font-weight: 600;
    color: #4caf50;
    background: rgba(76, 175, 80, 0.1);
    padding: 2px 5px;
    border-radius: 5px;
}

/* 快捷功能区域 */
.quick-actions-section {
    margin-bottom: 24px;
}

.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 12px;
}

.quick-action-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 245, 255, 0.9) 100%);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 16px 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(147, 112, 219, 0.1);
    position: relative;
    overflow: hidden;
}

.quick-action-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(147, 112, 219, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: all 0.3s;
}

.quick-action-card:hover::before {
    opacity: 1;
}

.quick-action-card:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 12px 30px rgba(147, 112, 219, 0.3);
    border-color: rgba(147, 112, 219, 0.3);
}

.action-icon {
    font-size: 32px;
    margin-bottom: 8px;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

.action-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 4px;
}

.action-desc {
    font-size: 12px;
    color: var(--md-on-surface-variant);
}

/* 玻璃卡片样式 */
.glass-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 245, 248, 0.9) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

/* 阅读热力图区域 */
.reading-heatmap-section {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 245, 255, 0.9) 100%) !important;
    border: 1px solid rgba(147, 112, 219, 0.1) !important;
    box-shadow: 0 1px 4px rgba(147, 112, 219, 0.06) !important;
    border-radius: 10px !important;
    padding: 12px !important;
    margin-bottom: 12px !important;
}

.reading-heatmap-section h3 {
    background: linear-gradient(90deg, #e91e63, #9c27b0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 14px !important;
    margin-bottom: 8px !important;
}

.heatmap-container {
    overflow-x: visible !important;
    margin-bottom: 10px !important;
}

.heatmap-summary {
    flex-wrap: wrap;
    gap: 10px !important;
}

@media (max-width: 600px) {
    .heatmap-summary {
        gap: 10px !important;
    }

    .summary-item {
        flex: 1 0 40%;
    }
    
    .reading-heatmap-section {
        padding: 12px !important;
    }
}

.settings-section {
    background: rgba(var(--md-surface-container-lowest-rgb, 255, 251, 255), 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--md-radius-lg);
    padding: 24px;
    box-shadow: var(--md-elevation-1);
    border: 1px solid rgba(var(--md-outline-variant-rgb, 131, 115, 119), 0.1);
}

.settings-section h3 {
    margin: 0 0 20px 0;
    color: var(--md-on-surface);
    font-size: 1.25rem;
}

.settings-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: rgba(var(--md-surface-container-rgb, 248, 234, 236), 0.5);
    border-radius: var(--md-radius-md);
    cursor: pointer;
    transition: var(--md-transition);
}

.setting-item:hover {
    background: rgba(var(--md-surface-container-rgb, 248, 234, 236), 0.8);
}

.setting-info {
    flex: 1;
}

.setting-title {
    font-weight: 500;
    font-size: 1rem;
    color: var(--md-on-surface);
    margin-bottom: 4px;
}

.setting-desc {
    font-size: 0.875rem;
    color: var(--md-on-surface-variant);
}

.setting-action {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-badge {
    padding: 4px 12px;
    border-radius: var(--md-radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    background: rgba(var(--md-surface-container-rgb, 248, 234, 236), 0.8);
    color: var(--md-on-surface-variant);
}

/* 鉴权设置样式 */
.device-list {
    margin: 15px 0;
}

.device-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: rgba(var(--md-surface-container-high-rgb, 242, 227, 230), 0.5);
    border-radius: var(--md-radius-md);
    margin-bottom: 8px;
}

.device-info {
    flex: 1;
}

.device-name {
    font-weight: 500;
    color: var(--md-on-surface);
    margin-bottom: 4px;
}

.device-details {
    font-size: 0.85rem;
    color: var(--md-on-surface-variant);
}

.device-current {
    color: var(--primary-color);
    font-weight: 500;
}

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

.setting-section {
    margin-bottom: 24px;
}

.setting-section h4 {
    margin-bottom: 12px;
    color: var(--md-on-surface);
}

.setting-description {
    color: var(--md-on-surface-variant);
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.setting-actions {
    margin-top: 16px;
    text-align: right;
}

.help-text {
    font-size: 0.85rem;
    color: var(--md-on-surface-variant);
    margin-top: 4px;
}

/* 筛选条样式 */
.filter-bar {
    margin-bottom: 20px;
    padding: 16px;
    background: rgba(var(--md-surface-container-lowest-rgb, 255, 251, 255), 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--md-radius-lg);
    border: 1px solid rgba(var(--md-outline-variant-rgb, 131, 115, 119), 0.1);
}

.filter-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

/* ===== 订阅管理页面样式 ===== */

/* 订阅标签页 */
.subscription-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.sub-tab {
    padding: 10px 20px;
    border: none;
    background: var(--md-surface-container-low);
    color: var(--md-on-surface-variant);
    border-radius: var(--md-radius-full);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--md-transition);
}

.sub-tab:hover {
    background: var(--md-surface-container-high);
}

.sub-tab.active {
    background: linear-gradient(135deg, #9c27b0, #7b1fa2);
    color: white;
    box-shadow: 0 4px 12px rgba(156, 39, 176, 0.3);
}

/* 订阅列表 */
.subscription-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 订阅卡片 */
.subscription-card {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: var(--md-surface-container-lowest);
    border-radius: var(--md-radius-lg);
    box-shadow: var(--md-elevation-1);
    transition: var(--md-transition);
    align-items: center;
}

.subscription-card:hover {
    box-shadow: var(--md-elevation-2);
    transform: translateY(-2px);
}

.subscription-card.has-update {
    background: linear-gradient(135deg, rgba(255, 243, 224, 0.95), rgba(255, 224, 178, 0.9));
    border-left: 4px solid #ff9800;
}

.subscription-card .book-cover {
    width: 60px;
    height: 80px;
    border-radius: var(--md-radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.subscription-card .book-info {
    flex: 1;
    min-width: 0;
}

.subscription-card .book-title {
    font-weight: 600;
    font-size: 15px;
    color: var(--md-on-surface);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.subscription-card .book-author {
    font-size: 13px;
    color: var(--md-on-surface-variant);
    margin-bottom: 8px;
}

.subscription-card .update-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: linear-gradient(135deg, #ff9800, #f57c00);
    color: white;
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--md-radius-full);
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%,
    100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-3px);
    }
    75% {
        transform: translateX(3px);
    }
}

.subscription-card .sub-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.subscription-card .btn-view {
    padding: 8px 16px;
    background: var(--md-primary);
    color: white;
    border: none;
    border-radius: var(--md-radius-full);
    font-size: 13px;
    cursor: pointer;
    transition: var(--md-transition);
}

.subscription-card .btn-view:hover {
    filter: brightness(1.1);
}

.subscription-card .btn-unsubscribe {
    padding: 6px 12px;
    background: transparent;
    color: var(--md-on-surface-variant);
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--md-radius-full);
    font-size: 12px;
    cursor: pointer;
    transition: var(--md-transition);
}

.subscription-card .btn-unsubscribe:hover {
    background: var(--md-error);
    color: white;
    border-color: var(--md-error);
}

/* 响应式 */
@media (max-width: 600px) {
    .subscription-card {
        flex-wrap: wrap;
    }

    .subscription-card .sub-actions {
        width: 100%;
        flex-direction: row;
        margin-top: 12px;
    }
}

/* ===== 底部Tab导航（移动端） ===== */
.bottom-tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--md-surface-container);
    border-top: 1px solid var(--md-outline-variant);
    display: none;
    align-items: center;
    justify-content: space-around;
    padding: 0 8px;
    z-index: 999;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);

    /* 安全区域适配（刈海屏/圆角屏） */
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: max(8px, env(safe-area-inset-left));
    padding-right: max(8px, env(safe-area-inset-right));
}

/* 移动端显示Tab导航 */
@media (max-width: 768px) {
    .bottom-tab-bar {
        display: flex;
    }

    /* 主内容区添加底部内边距，避免被Tab遮挡 */
    .main-content {
        padding-bottom: 80px !important;
    }

    /* 各个页面容器也需要底部边距 */
    .page,
    .page-content,
    .container,
    .detail-container,
    .bookshelf-container,
    .downloads-container,
    .library-container,
    .settings-container {
        padding-bottom: 80px !important;
    }

    /* 隐藏顶部导航栏（可选） */
    .header .nav {
        display: none;
    }


}

/* Tab项目 */
.tab-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    padding: 8px 4px;
    text-decoration: none;
    color: var(--md-on-surface-variant);
    transition: var(--md-transition);
    border-radius: var(--md-radius-sm);
    min-width: 0;
}

.tab-item:hover {
    background: var(--md-surface-container-high);
}

.tab-item.active {
    color: var(--md-primary);
}

/* Tab图标 */
.tab-icon {
    font-size: 24px;
    margin-bottom: 4px;
    transition: transform 0.2s ease;
}

.tab-item.active .tab-icon {
    transform: scale(1.1);
}

/* Tab标签 */
.tab-label {
    font-size: 11px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

/* Tab徽章 */
.tab-badge {
    position: absolute;
    top: 4px;
    right: calc(50% - 20px);
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    background: var(--md-error);
    color: white;
    border-radius: 9px;
    font-size: 10px;
    font-weight: 600;
    display: none;
    align-items: center;
    justify-content: center;
}

.tab-badge:not(:empty) {
    display: flex;
}

/* Tab激活指示器 */
.tab-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--md-primary);
    border-radius: 0 0 3px 3px;
    transition: width 0.3s ease;
}

.tab-item.active::before {
    width: 40px;
}

/* Tab点击波纹效果 */
.tab-item:active {
    transform: scale(0.95);
}

/* 深色主题下的Tab */
[data-theme="dark"] .bottom-tab-bar {
    background: var(--md-surface-container);
    border-top-color: var(--md-outline-variant);
}

/* 护眼主题下的Tab */
[data-theme="eye-care"] .bottom-tab-bar {
    background: var(--md-surface-container);
    border-top-color: var(--md-outline-variant);
}

/* 小屏幕优化 */
@media (max-width: 360px) {
    .tab-label {
        font-size: 10px;
    }

    .tab-icon {
        font-size: 20px;
    }

    .bottom-tab-bar {
        height: 56px;
        padding: 0 4px;
    }
}

/* ===== 移动端通用优化 ===== */
@media (max-width: 768px) {
    /* 移除点击高亮效果 */
    * {
        -webkit-tap-highlight-color: transparent;
        -webkit-touch-callout: none;
    }

    /* 优化触摸反馈 */
    button,
    .btn,
    .tab-item,
    .drawer-link,
    .book-card,
    .chapter-item {
        touch-action: manipulation;
        -webkit-user-select: none;
        user-select: none;
    }

    /* 加快点击响应 */
    a,
    button,
    .btn,
    .tab-item,
    .drawer-link {
        cursor: pointer;
        -ms-touch-action: manipulation;
        touch-action: manipulation;
    }

    /* 滚动优化 */
    .main-content,
    .page,
    .mobile-drawer,
    .catalog-list,
    .chapters-list {
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-y: contain;
    }
}

/* ===== 继续阅读区域 ===== */
.continue-reading-section {
    margin-bottom: 24px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding: 0 4px;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin: 0;
}

.section-icon {
    font-size: 24px;
}

.section-link {
    color: var(--md-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--md-transition);
}

.section-link:hover {
    color: var(--md-primary-dark);
    text-decoration: underline;
}

.continue-reading-cards {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 4px 4px 12px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--md-primary) transparent;
}

.continue-reading-cards::-webkit-scrollbar {
    height: 4px;
}

.continue-reading-cards::-webkit-scrollbar-track {
    background: transparent;
}

.continue-reading-cards::-webkit-scrollbar-thumb {
    background: var(--md-primary);
    border-radius: 2px;
}

.continue-reading-card {
    flex: 0 0 260px;
    scroll-snap-align: start;
    background: var(--md-surface-container-low);
    border-radius: 12px;
    padding: 14px;
    cursor: pointer;
    transition: var(--md-transition);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
}

.continue-reading-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--md-primary), var(--md-tertiary));
}

.continue-reading-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.reading-card-header {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.reading-card-cover {
    width: 60px;
    height: 84px;
    border-radius: var(--md-radius-sm);
    object-fit: cover;
    box-shadow: var(--md-elevation-1);
}

.reading-card-info {
    flex: 1;
    min-width: 0;
}

.reading-card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin: 0 0 4px 0;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.reading-card-author {
    font-size: 13px;
    color: var(--md-on-surface-variant);
    margin: 0;
}

.reading-card-progress {
    margin-bottom: 8px;
}

.progress-text {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--md-on-surface-variant);
    margin-bottom: 6px;
}

.progress-bar {
    height: 6px;
    background: var(--md-surface-container-highest);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--md-primary), var(--md-tertiary));
    border-radius: 3px;
    transition: width 0.3s ease;
}

.reading-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--md-on-surface-variant);
}

.reading-card-time {
    display: flex;
    align-items: center;
    gap: 4px;
}

.reading-card-chapter {
    font-weight: 500;
    color: var(--md-primary);
}

/* 移动端优化 */
@media (max-width: 768px) {
    .continue-reading-card {
        flex: 0 0 260px;
    }

    .section-title {
        font-size: 18px;
    }
}

/* ===== 横屏适配 ===== */
@media (max-width: 768px) and (orientation: landscape) {
    /* 横屏时隐藏底部Tab，节省屏幕空间 */
    .bottom-tab-bar {
        height: 50px;
    }

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

    .tab-label {
        font-size: 10px;
    }



    /* 横屏时抽屉菜单宽度减小 */
    #mobile-drawer {
        width: 250px !important;
        left: -250px !important;
    }

    /* 页面内边距减小 */
    .main-content,
    .page,
    .page-content {
        padding-bottom: 60px !important;
    }
}

/* ==================== 响应式优化 ==================== */
@media (max-width: 768px) {
    .header {
        padding: 8px 12px;
        gap: 8px;
    }
    
    .logo-text {
        font-size: 16px;
    }
    
    .logo-icon {
        font-size: 20px;
    }
    
    .nav {
        gap: 2px;
        justify-content: flex-start;
        overflow-x: auto;
        scrollbar-width: none; /* Firefox */
        -ms-overflow-style: none; /* IE 10+ */
    }
    
    .nav::-webkit-scrollbar {
        display: none; /* Chrome Safari */
    }
    
    .nav-link {
        padding: 6px 10px;
        font-size: 12px;
        white-space: nowrap;
    }
    
    #username-display {
        font-size: 12px;
        padding: 4px 8px;
        max-width: 100px;
    }
    
    .user-info .btn-sm {
        padding: 6px 10px;
        font-size: 12px;
    }
    
    .theme-toggle {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 6px 10px;
        gap: 6px;
    }
    
    .logo-text {
        font-size: 14px;
    }
    
    .logo-icon {
        font-size: 18px;
    }
    
    .nav-link {
        padding: 4px 8px;
        font-size: 11px;
    }
    
    #username-display {
        font-size: 11px;
        padding: 3px 6px;
        max-width: 80px;
    }
    
    .user-info .btn-sm {
        padding: 4px 8px;
        font-size: 11px;
    }
    
    .theme-toggle {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }
}

/* ==================== 暗色主题适配 ==================== */
@media (prefers-color-scheme: dark) {
    :root {
        --md-surface-container-lowest: #1e1b1b;
        --md-surface-container: #2a2727;
        --md-surface-container-high: #363333;
        --md-surface-container-highest: #423f3f;
        --md-on-surface: #ece0e0;
        --md-on-surface-variant: #d5c2c6;
        --md-outline: #9f8c91;
        --md-outline-variant: #514347;
    }
}