/* Material You 设计系统 - 美化版 */
/* 全局样式增强 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background-color: var(--outline);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--primary-light);
}
@media (max-width: 768px) {
    .title {
        font-size: 32px;
        margin-bottom: 20px;
    }

.toggle-description {
    margin-left: 16px;
    font-size: 14px;
    color: var(--on-surface-variant);
    max-width: 300px;
}

/* 单选按钮组样式 */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 8px;
}

.radio-item {
    display: flex;
    align-items: center;
}

.radio-input {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary);
    border-radius: 50%;
    outline: none;
    margin-right: 8px;
    position: relative;
}

.radio-input:checked::before {
    content: '';
    width: 12px;
    height: 12px;
    background-color: var(--primary);
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.radio-label {
    font-size: 16px;
    color: var(--on-surface);
    cursor: pointer;
}

/* 切换开关样式 */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
    margin: 0 16px;
}

.toggle-switch .toggle-input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-switch .toggle-label {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.toggle-switch .toggle-label:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

.toggle-switch .toggle-input:checked + .toggle-label {
    background-color: var(--primary-color);
}

.toggle-switch .toggle-input:focus + .toggle-label {
    box-shadow: 0 0 1px var(--primary-color);
}

.toggle-switch .toggle-input:checked + .toggle-label:before {
    transform: translateX(24px);
}

    .search-box {
        padding: 12px 16px;
        width: 90%;
    }
    .settings-panel {
        width: 100%;
    }
    .nav-sidebar {
        width: 200px;
    }
    .settings-content {
        padding: 20px 15px;
    }
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 20px;
    }
    .search-engine-option,
    .color-picker {
        padding: 10px 12px;
    }
    .settings-icon {
        width: 48px;
        height: 48px;
        bottom: 16px;
        right: 16px;
    }
}
@media (max-width: 480px) {
    .title {
        font-size: 28px;
    }
    .panel-container {
        flex-direction: column;
    }
    .nav-sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    .nav-menu {
        display: flex;
        overflow-x: auto;
    }
    .nav-item {
        flex: 0 0 auto;
        border-bottom: none;
        border-right: 1px solid var(--border-color);
    }
    .nav-link {
        padding: 10px 12px;
        flex-direction: column;
    }
    .nav-icon {
        margin-right: 0;
        margin-bottom: 4px;
    }
    .nav-text {
        font-size: 12px;
    }
}
:root {
    /* 主色调 - 基于用户壁纸的个性化色彩 */
    --primary-color: #6200ee;
    --primary-color-rgb: 98, 0, 238;
    --primary-light: #bb86fc;
    --primary-dark: #3700b3;

    /* 辅助色 */
    --secondary-color: #03dac6;
    --secondary-light: #66ffed;
    --secondary-dark: #018786;

    /* 中性色 */
    --background: #f9f9f9;
    --surface: #ffffff;
    --surface-variant: #f2f2f7;
    --on-background: #121212;
    --on-surface: #121212;
    --on-surface-variant: #424242;
    --outline: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.1);

    /* 状态颜色 */
    --error: #b00020;
    --success: #00c853;

    /* 间距和圆角 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --border-radius-full: 50%;
}

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

body {
    font-family: 'Roboto', 'Microsoft YaHei', sans-serif;
    background-color: var(--background);
    color: var(--on-background);
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.title {
    font-size: 40px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 28px;
    text-align: center;
    letter-spacing: -0.5px;
}

.search-box {
    background-color: var(--surface);
    padding: 16px 24px;
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 20px var(--shadow-color);
    width: 640px;
    max-width: 90%;
    display: flex;
    align-items: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.search-box:hover {
    box-shadow: 0 8px 30px rgba(var(--primary-color-rgb), 0.12);
    transform: translateY(-3px);
}

.search-box:focus-within {
    box-shadow: 0 10px 36px rgba(var(--primary-color-rgb), 0.15);
    transform: translateY(-3px);
    border-color: var(--primary-light);
}

.search-box:hover {
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.search-box:focus-within {
    box-shadow: 0 8px 30px rgba(var(--primary-color-rgb), 0.12);
    transform: translateY(-2px);
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 16px;
    padding: 8px 0;
    color: var(--on-surface);
    transition: all 0.2s ease;
}

.search-box input::placeholder {
    color: var(--on-surface-variant);
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.search-box input:focus::placeholder {
    opacity: 0.4;
}

.search-box button {
    border: none;
    background: none;
    cursor: pointer;
    padding: 10px;
    color: var(--primary-color);
    border-radius: 50%;
    transition: background-color 0.2s ease;
}

.search-box button:hover {
    background-color: rgba(var(--primary-color-rgb), 0.08);
}

/* 设置图标和面板样式 */
.settings-icon {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 56px;
    height: 56px;
    background-color: var(--primary-color);
    border-radius: var(--border-radius-full);
    box-shadow: 0 6px 20px rgba(var(--primary-color-rgb), 0.4);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.settings-icon:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 28px rgba(var(--primary-color-rgb), 0.5);
}

.settings-icon:active {
    transform: scale(0.95);
}

.settings-icon:hover {
    transform: scale(1.08);
    box-shadow: 0 8px 24px rgba(var(--primary-color-rgb), 0.5);
}

.settings-icon svg {
    fill: white;
    stroke: white;
    width: 24px;
    height: 24px;
}

/* 设置面板样式 */
.settings-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 800px;
    height: 100%;
    background-color: var(--surface);
    box-shadow: -4px 0 20px var(--shadow-color);
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    overflow: hidden;
    border-top-left-radius: var(--border-radius-lg);
    border-bottom-left-radius: var(--border-radius-lg);
}

.settings-panel.active {
    transform: translateX(0);
    box-shadow: -8px 0 30px var(--shadow-color);
}

.settings-panel.active {
    transform: translateX(0);
}

.panel-container {
    display: flex;
    height: 100%;
}

/* 侧边导航栏 */
.nav-sidebar {
    width: 240px;
    background-color: var(--sidebar-background);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    flex-shrink: 0;
}

.nav-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.nav-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-primary);
}

.nav-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-item {
    border-bottom: 1px solid var(--border-color);
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background-color: var(--primary-color);
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link.active::after {
    transform: translateX(0);
}

.nav-link:hover {
    background-color: var(--hover-background);
    color: var(--text-primary);
}

.nav-link.active {
    background-color: var(--active-background);
    color: var(--primary-color);
    font-weight: 500;
}

.nav-icon {
    margin-right: 12px;
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

/* 主内容区域 */
.main-content {
    flex-grow: 1;
    overflow-y: auto;
}

.panel-header {
    display: flex;
    justify-content: flex-end;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.2s;
    padding: 0 10px;
}

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

.settings-content {
    padding: 30px;
}

.settings-section {
    display: none;
}

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

.section-title {
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-top: 0;
    margin-bottom: 30px;
}

.settings-card {
    background-color: var(--surface);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.settings-card:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
}

.settings-item {
    margin-bottom: 24px;
}

.settings-item:last-child {
    margin-bottom: 0;
}

.wallpaper-upload {
    margin-top: 15px;
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.wallpaper-upload .file-input {
    flex: 1;
    min-width: 200px;
}

.wallpaper-upload .btn {
    white-space: nowrap;
}

.form-label {
    display: block;
    margin-bottom: 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--on-surface-variant);
}

.file-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--outline);
    border-radius: 12px;
    font-size: 14px;
    color: var(--on-surface);
    background-color: var(--surface);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.file-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(var(--primary-color-rgb), 0.2);
    background-color: var(--surface);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    text-align: center;
    vertical-align: middle;
    user-select: none;
    border: none;
    padding: 10px 16px;
    font-size: 14px;
    line-height: 1.5;
    border-radius: 12px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    min-width: 64px;
}

.btn-primary {
    color: white;
    background-color: var(--primary-color);
    box-shadow: 0 2px 4px rgba(var(--primary-color-rgb), 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 4px 8px rgba(var(--primary-color-rgb), 0.3);
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(var(--primary-color-rgb), 0.2);
    transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.btn-outline-secondary {
    color: var(--on-surface-variant);
    background-color: var(--surface);
    border: 1px solid var(--outline);
}

.btn-outline-secondary:hover {
    background-color: var(--surface-variant);
    border-color: var(--outline);
    transform: translateY(-1px);
}

.search-engine-option {
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-radius: 12px;
    transition: background-color 0.2s ease;
}

.search-engine-option:hover {
    background-color: var(--surface-variant);
}

/* 搜索引擎分组样式 */
.search-engine-group {
    margin-top: 16px;
}

.group-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-radius: 12px;
    background-color: var(--surface);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.group-title:hover {
    background-color: var(--surface-variant);
}

.group-text {
    font-size: 16px;
    color: var(--on-surface);
    font-weight: 500;
}

.group-icon {
    font-size: 14px;
    color: var(--text-secondary);
    transition: transform 0.2s ease;
}

.group-title.active .group-icon {
    transform: rotate(180deg);
}

.group-options {
    margin-top: 8px;
    padding-left: 20px;
}

.subgroup-option {
    padding-left: 20px;
}

.radio-input {
    margin-right: 16px;
    width: 20px;
    height: 20px;
    accent-color: var(--primary-color);
    transition: transform 0.2s ease;
}

.radio-input:checked {
    transform: scale(1.15);
}

.radio-label {
    font-size: 16px;
    color: var(--on-surface);
    cursor: pointer;
    font-weight: 400;
}

.theme-color-options {
    margin-bottom: 24px;
}

.color-picker {
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-radius: 12px;
    transition: background-color 0.2s ease;
}

.color-picker:hover {
    background-color: var(--surface-variant);
}

/* 关于页面样式 */
.about-title {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-top: 0;
    margin-bottom: 8px;
}

.about-version {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 0;
    margin-bottom: 16px;
}

.about-description {
    font-size: 1rem;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 24px;
}

.about-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.about-link {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s, text-decoration 0.2s;
}

.about-link:hover {
    color: var(--primary-variant);
    text-decoration: underline;
}
/* 移动端设置面板优化 */
@media (max-width: 768px) {
    .settings-panel {
        width: 100%;
    }
    .settings-panel .panel-container {
        flex-direction: column;
        width: 100%;
        max-width: 100%;
    }
    .nav-sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    .nav-menu {
        display: flex;
        overflow-x: auto;
        padding-bottom: 10px;
    }
    .nav-item {
        margin-right: 15px;
        white-space: nowrap;
        border-bottom: none;
    }
    .main-content {
        width: 100%;
        height: auto;
        max-height: 70vh;
        overflow-y: auto;
    }
    .settings-card {
        padding: 15px;
    }
    .settings-item {
        margin-bottom: 15px;
    }
}

@media (max-width: 480px) {
    .settings-panel .panel-container {
        width: 95%;
    }
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 15px;
    }
    .radio-label {
        font-size: 0.9rem;
    }
    .btn {
        padding: 8px 12px;
        font-size: 0.9rem;
    }
}