@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&family=Inter:wght@400;500;700&display=swap');

/* Apple风格现代化设计系统 */
:root {
    /* Apple主色调 */
    --primary-color: #007AFF; /* iOS蓝色 */
    --primary-dark: #0056CC; /* 深蓝色 */
    --secondary-color: #8E8E93; /* 系统灰色 */
    --accent-color: #FF9500; /* 橙色 */
    
    /* 功能色彩 - Apple系统色 */
    --success-color: #34C759; /* 绿色 */
    --warning-color: #FFCC00; /* 黄色 */
    --error-color: #FF3B30; /* 红色 */
    --info-color: #5AC8FA; /* 浅蓝色 */
    
    /* 功能模块颜色 - Apple风格 */
    --file-color: #AF52DE; /* 紫色 */
    --alarm-color: #FF9500; /* 橙色 */
    --weather-color: #30D158; /* 绿色 */
    --reading-color: #FF453A; /* 红色 */
    --clock-color: #007AFF; /* 蓝色 */
    --network-color: #5856D6; /* 靛蓝色 */
    --timer-color: #FF2D92; /* 粉红色 */
    --settings-color: #8E8E93; /* 灰色 */
    
    /* Apple设计系统颜色 */
    --bg-color: #F2F2F7; /* 系统背景色 */
    --bg-secondary: #FFFFFF; /* 次要背景色 */
    --surface-color: #FFFFFF; /* 卡片背景 */
    --surface-secondary: rgba(255, 255, 255, 0.8); /* 半透明表面 */
    --text-primary: #000000; /* 主要文字 */
    --text-secondary: #3C3C43; /* 次要文字 */
    --text-tertiary: #3C3C4399; /* 三级文字 */
    --border-color: #C6C6C8; /* 边框颜色 */
    --separator-color: #3C3C4329; /* 分隔线颜色 */
    
    /* Apple设计规范 */
    --border-radius-small: 8px;
    --border-radius: 12px;
    --border-radius-large: 16px;
    --border-radius-xl: 20px;
    
    /* Apple阴影系统 */
    --shadow-small: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-large: 0 8px 25px rgba(0, 0, 0, 0.15), 0 4px 10px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 15px 35px rgba(0, 0, 0, 0.1), 0 8px 15px rgba(0, 0, 0, 0.08);
    --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.1);
    
    /* Apple毛玻璃效果 */
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-backdrop: blur(20px) saturate(180%);
    
    /* Apple字体系统 */
    --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    
    /* Apple动画系统 */
    --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-medium: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    
    /* 间距系统 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* 响应式断点 */
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
}

/* Styles for network-setup.html */
.network-step:last-child {
    border-bottom: none;
}
.network-step p {
    margin-bottom: 0.8rem;
}
.confirm-btn {
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.2s ease;
}
.confirm-btn:hover {
    background-color: var(--primary-dark);
}
.confirm-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}
.active-step {
    /* Styles for the currently active step, if any specific styling is needed */
}
.step-image-small {
    max-width: 80%; 
    margin: 0.5rem auto 1rem auto; 
    border-radius: 5px; 
    display: block;
    border: 1px solid #ddd;
}

/* Apple风格重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

*::before,
*::after {
    box-sizing: border-box;
}

body {
    background: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 17px; /* Apple标准字体大小 */
    line-height: 1.47; /* Apple标准行高 */
    letter-spacing: -0.022em; /* Apple字符间距 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    padding: var(--spacing-lg);
    overflow-x: hidden;
}

/* Apple风格容器设计 */
.container {
    max-width: 980px;
    margin: 0 auto;
    padding: 0;
    background: var(--glass-bg);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-xl), var(--shadow-inset);
    overflow: hidden;
    width: 100%;
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    animation: scaleIn 0.6s var(--transition-medium) both;
    position: relative;
}

.container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    pointer-events: none;
}

.guide-container {
    background: var(--surface-color);
    border-radius: var(--border-radius-large);
    overflow: hidden;
    position: relative;
}

/* Apple风格头部设计 */
header {
    background: var(--surface-color);
    color: var(--text-primary);
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-xl);
    border-bottom: 1px solid var(--separator-color);
    position: relative;
    animation: fadeInUp 0.8s var(--transition-medium) both;
}

header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

header h1 {
    font-size: 2.125rem; /* 34px - Apple大标题 */
    font-weight: 700;
    letter-spacing: -0.025em;
    margin: 0 0 var(--spacing-sm) 0;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-subtitle {
    font-size: 1.125rem; /* 18px */
    font-weight: 400;
    color: var(--text-secondary);
    margin: 0;
    letter-spacing: -0.022em;
    opacity: 0.8;
}

.progress-container {
    display: flex;
    justify-content: center;
    margin: 0;
    padding: 1.5rem 0; /* 调整内边距 */
    background: var(--surface-color);
    border-bottom: 1px solid var(--light-gray);
}

.progress-dot {
    width: 14px; /* 增大圆点 */
    height: 14px;
    border-radius: 50%;
    background-color: var(--border-color);
    margin: 0 12px; /* 调整间距 */
    cursor: pointer;
    transition: all var(--transition-speed) ease-in-out;
    position: relative;
    flex-shrink: 0;
}

.progress-dot:hover::after {
    content: attr(title);
    position: absolute;
    top: -40px; /* 调整位置 */
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: var(--surface-color);
    padding: 8px 12px; /* 调整内边距 */
    border-radius: 8px; /* 调整圆角 */
    font-size: 14px; /* 调整字体大小 */
    white-space: nowrap;
    z-index: 2;
    box-shadow: 0 3px 10px rgba(0,0,0,0.15);
}

.progress-dot.active {
    background-color: var(--primary-color);
    transform: scale(1.5); /* 增大活跃圆点 */
    box-shadow: 0 0 0 5px rgba(74, 144, 226, 0.4); /* 增加光晕效果 */
}

.progress-dot.completed {
    background-color: var(--success-color);
}

.guide-content {
    padding: 3.5rem; /* 增加内边距 */
    min-height: 550px; /* 增加最小高度 */
}

.guide-content h2 {
    color: var(--primary-color);
    margin-bottom: 2rem; /* 调整间距 */
    font-size: 2rem; /* 调整字体大小 */
    font-weight: 700;
    text-align: center; /* 居中 */
}

.guide-content h3 {
    color: var(--text-primary);
    margin: 2.2rem 0 1.5rem; /* 调整间距 */
    font-size: 1.6rem; /* 调整字体大小 */
    font-weight: 600;
}

.guide-content p {
    margin-bottom: 1.5rem; /* 调整间距 */
    line-height: 1.7; /* 增加行高 */
    color: var(--text-secondary);
    font-size: 1.1rem; /* 略微增大字体 */
}

.step {
    display: none;
    animation: fadeIn 0.6s ease-out; /* 更平滑的动画 */
}

.step.active {
    display: block;
}

#guide-content .step-content {
    padding: var(--spacing-large);
    background-color: var(--surface-color);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-elevation-medium);
    animation: fadeIn 0.5s ease-out;
    overflow-y: auto; /* Add scroll for long content */
    max-height: calc(100vh - 250px); /* Adjust max-height as needed */
    display: flex;
    flex-direction: column;
    align-items: center; /* Center content horizontally */
    text-align: center; /* Center text within elements */
}

.step-text {
    flex: 1;
    min-width: 350px; /* 调整最小宽度 */
    max-width: 600px; /* 增加最大宽度 */
}

.step-icon {
    text-align: center;
    font-size: 4rem; /* 增大图标 */
    color: var(--primary-color);
    margin-bottom: 1.8rem; /* 调整间距 */
    animation: pulse 2.5s infinite ease-in-out; /* 更平滑的动画 */
}

/* Apple风格动画效果 */
@keyframes pulse {
    0% { 
        transform: scale(1); 
        opacity: 1; 
    }
    50% { 
        transform: scale(1.05); 
        opacity: 0.95; 
    }
    100% { 
        transform: scale(1); 
        opacity: 1; 
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Apple风格快速链接区域 */
.quick-links {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-xl);
    background: var(--bg-color);
    border-top: 1px solid var(--separator-color);
    animation: fadeInUp 1s var(--transition-medium) both;
    animation-delay: 0.3s;
}

.quick-links h2 {
    font-size: 1.75rem; /* 28px */
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.022em;
}

.link-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
    padding: 0 var(--spacing-lg);
}

/* Apple风格按钮设计 */
.link-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-medium), var(--shadow-inset);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s var(--transition-medium) both;
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
}

/* 交错动画效果 */
.link-btn:nth-child(1) { animation-delay: 0.5s; }
.link-btn:nth-child(2) { animation-delay: 0.6s; }
.link-btn:nth-child(3) { animation-delay: 0.7s; }
.link-btn:nth-child(4) { animation-delay: 0.8s; }

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

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

.link-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-color);
}

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

.link-btn:active {
    transform: translateY(0) scale(0.98);
    transition: all 0.1s;
}

/* Apple风格图标设计 */
.link-btn i {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
    transition: all var(--transition-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-small);
    background: rgba(0, 122, 255, 0.1);
}

.link-btn:hover i {
    color: white;
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

/* 快速操作栏目样式 */
.quick-operations {
    background: var(--surface-color);
    padding: var(--spacing-2xl) var(--spacing-xl);
    border-top: 1px solid var(--separator-color);
    animation: fadeInUp 0.8s var(--transition-medium) both;
    animation-delay: 0.4s;
}

.quick-operations h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.022em;
    text-align: center;
}

.operations-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.operation-section {
    background: var(--glass-bg);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-medium), var(--shadow-inset);
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
    transition: all var(--transition-medium);
    animation: fadeInUp 0.6s var(--transition-medium) both;
}

.operation-section:nth-child(1) { animation-delay: 0.5s; }
.operation-section:nth-child(2) { animation-delay: 0.6s; }

.operation-section:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
}

.operation-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.operation-section h3 i {
    color: var(--primary-color);
    font-size: 1.5rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 122, 255, 0.1);
    border-radius: var(--border-radius-small);
}

.operation-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.operation-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-small);
    transition: all var(--transition-fast);
}

.operation-item:hover {
    background: rgba(0, 122, 255, 0.05);
}

.operation-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-size: 0.875rem;
    font-weight: 600;
    flex-shrink: 0;
    margin-top: 2px;
}

.operation-text {
    flex: 1;
    color: var(--text-primary);
    line-height: 1.5;
    font-size: 1rem;
}

.operation-text strong {
    color: var(--primary-color);
    font-weight: 600;
}

.sub-operations {
    margin-top: var(--spacing-sm);
    margin-left: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.sub-operation {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(0, 122, 255, 0.05);
    border-radius: var(--border-radius-small);
    border-left: 3px solid var(--primary-color);
    transition: all var(--transition-fast);
}

.sub-operation:hover {
    background: rgba(0, 122, 255, 0.1);
    transform: translateX(2px);
}

/* 固件更新页面专用样式 */
.important-notice {
    background: linear-gradient(135deg, var(--warning-color), #FFD700);
    color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-medium);
    animation: fadeInUp 0.6s var(--transition-medium) both;
}

.important-notice h3 {
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
}

.important-notice h3 i {
    font-size: 1.5rem;
}

.important-notice p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.important-notice p:last-child {
    margin-bottom: 0;
}

.sub-step {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
}

.sub-step h4 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.125rem;
    font-weight: 600;
}

.sub-step h4 i {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 122, 255, 0.1);
    border-radius: var(--border-radius-small);
}

.step-content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.download-link {
    background: var(--surface-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-small);
    border: 2px dashed var(--primary-color);
    margin: var(--spacing-md) 0;
    text-align: center;
}

.link-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-medium);
    margin-bottom: var(--spacing-sm);
}

.link-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.extract-code {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

.extract-code code {
    background: var(--primary-color);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.firmware-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.firmware-step {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.firmware-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
}

.firmware-step:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.step-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.step-badge {
    background: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: var(--border-radius-small);
    font-size: 0.875rem;
    font-weight: 600;
    flex-shrink: 0;
}

.step-header h4 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.125rem;
    font-weight: 600;
}

.firmware-step p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.firmware-step p:last-child {
    margin-bottom: 0;
}

.firmware-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0;
}

.firmware-list > li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--separator-color);
    position: relative;
    padding-left: var(--spacing-lg);
}

.firmware-list > li:last-child {
    border-bottom: none;
}

.firmware-list > li::before {
    content: '•';
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.sub-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-sm) 0 0 var(--spacing-lg);
}

.sub-list li {
    padding: var(--spacing-xs) 0;
    position: relative;
    padding-left: var(--spacing-md);
}

.sub-list li::before {
    content: '▸';
    color: var(--accent-color);
    position: absolute;
    left: 0;
}

.note {
    background: rgba(255, 149, 0, 0.1);
    border-left: 4px solid var(--accent-color);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 0 var(--border-radius-small) var(--border-radius-small) 0;
    font-style: italic;
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
}

.warning-section {
    background: linear-gradient(135deg, rgba(255, 59, 48, 0.1), rgba(255, 149, 0, 0.1));
    border: 2px solid var(--warning-color);
}

.warning-content {
    background: var(--surface-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-md);
}

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

.warning-list li {
    padding: var(--spacing-sm) 0;
    position: relative;
    padding-left: var(--spacing-xl);
    line-height: 1.6;
}

.warning-list li::before {
    content: '⚠️';
    position: absolute;
    left: 0;
    top: var(--spacing-sm);
}

/* 固件更新页面响应式设计 */
@media (max-width: 768px) {
    .sub-step {
        padding: var(--spacing-md);
    }
    
    .firmware-step {
        padding: var(--spacing-md);
    }
    
    .step-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .download-link {
        padding: var(--spacing-sm);
    }
    
    .link-button {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .important-notice {
        padding: var(--spacing-md);
    }
    
    .sub-step {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .firmware-step {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .step-header h4 {
        font-size: 1rem;
    }
    
    .firmware-list > li {
        padding-left: var(--spacing-md);
    }
    
    .sub-list {
        margin-left: var(--spacing-md);
    }
    
    .warning-list li {
        padding-left: var(--spacing-lg);
    }
}

/* Apple风格响应式设计 */
@media (max-width: 768px) {
    body {
        padding: var(--spacing-md);
    }

    .container {
        border-radius: var(--border-radius);
        box-shadow: var(--shadow-medium);
    }

    header {
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    header h1 {
        font-size: 1.875rem; /* 30px */
    }

    .header-subtitle {
        font-size: 1rem;
    }

    .guide-content {
        padding: var(--spacing-xl) var(--spacing-lg);
        min-height: 400px;
    }

    .guide-content h2 {
        font-size: 1.5rem;
    }

    .guide-content h3 {
        font-size: 1.25rem;
    }

    .step-icon {
        font-size: 3rem;
    }

    .link-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-md);
    }

    .link-btn {
        padding: var(--spacing-md);
    }

    .link-btn i {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }

    .navigation-buttons {
        padding: var(--spacing-md) var(--spacing-lg);
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    /* 快速操作响应式样式 */
    .quick-operations {
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .operations-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .operation-section {
        padding: var(--spacing-md);
    }

    .operation-section h3 {
        font-size: 1.125rem;
    }

    .operation-section h3 i {
        width: 28px;
        height: 28px;
        font-size: 1.25rem;
    }

    .operation-text {
        font-size: 0.95rem;
    }

    .sub-operation {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: var(--spacing-sm);
        font-size: 16px;
    }

    .container {
        border-radius: var(--border-radius-small);
    }

    header {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    header h1 {
        font-size: 1.625rem; /* 26px */
    }

    .header-subtitle {
        font-size: 0.9rem;
    }

    .guide-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .guide-content h2 {
        font-size: 1.375rem;
    }

    .guide-content h3 {
        font-size: 1.125rem;
    }

    .step-icon {
        font-size: 2.5rem;
    }

    .link-btn {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .link-btn i {
        width: 36px;
        height: 36px;
        font-size: 1.25rem;
    }

    .navigation-buttons {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.9rem;
        min-height: 40px;
    }

    /* 快速操作小屏幕响应式样式 */
    .quick-operations {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .quick-operations h2 {
        font-size: 1.5rem;
    }

    .operations-content {
        gap: var(--spacing-md);
    }

    .operation-section {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .operation-section h3 {
        font-size: 1rem;
    }

    .operation-section h3 i {
        width: 24px;
        height: 24px;
        font-size: 1.125rem;
    }

    .operation-number {
        width: 20px;
        height: 20px;
        font-size: 0.75rem;
    }

    .operation-text {
        font-size: 0.9rem;
    }

    .sub-operations {
        margin-left: var(--spacing-md);
    }

    .sub-operation {
        font-size: 0.8rem;
        padding: var(--spacing-xs);
    }
}

/* Specific styles for network-setup.html and time-calibration.html */
.network-setup-page, .time-calibration-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--bg-color);
    padding: 20px;
}

.network-setup-page .container, .time-calibration-page .container {
    max-width: 800px; /* Adjust max-width for these specific pages */
    padding: 3rem; /* Adjust padding */
}

.steps-container {
    margin: 2.5rem 0;
}

.step-item {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 1.8rem;
    transition: all var(--transition-speed) ease-in-out;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.step-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.step-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 6px; /* Thicker accent bar */
    height: 100%;
    opacity: 0.9;
}

.step-item:nth-child(1)::before {
    background-color: var(--network-color);
}

.step-item:nth-child(2)::before {
    background-color: var(--clock-color);
}

.step-item:nth-child(3)::before {
    background-color: var(--reading-color);
}

.step-number {
    display: inline-block;
    width: 32px; /* Larger number circle */
    height: 32px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 32px;
    font-size: 16px; /* Larger font size */
    margin-right: 1rem;
    box-shadow: 0 3px 8px rgba(0,0,0,0.15);
}

.step-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    font-size: 1.3rem;
}

.step-title i {
    color: var(--accent-color);
    margin-right: 0.8rem;
    font-size: 1.5rem;
}

.step-image {
    max-width: 100%;
    margin-bottom: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.step-image-small {
    max-width: 80%; /* Smaller images for sub-steps */
    margin: 1rem auto;
    display: block;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.network-step {
    padding: 1.2rem 0;
    border-bottom: 1px dashed var(--light-gray);
}

.network-step:last-child {
    border-bottom: none;
}

.network-step p {
    font-size: 1.05rem;
    margin-bottom: 0.8rem;
}

.network-step strong {
    color: var(--primary-color);
}

.confirm-btn {
    background-color: var(--success-color);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 1rem;
    margin-top: 1rem;
    transition: background-color 0.3s ease;
}

.confirm-btn:hover {
    background-color: #4CAF50;
}

#config-complete-message {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--success-color);
    margin-top: 1.5rem;
}

/* Responsive adjustments for network-setup and time-calibration */
@media (max-width: 768px) {
    .network-setup-page .container, .time-calibration-page .container {
        padding: 2rem;
    }

    .step-item {
        padding: 1.5rem;
        margin-bottom: 1.2rem;
    }

    .step-title {
        font-size: 1.1rem;
    }

    .step-number {
        width: 28px;
        height: 28px;
        line-height: 28px;
        font-size: 14px;
    }

    .step-title i {
        font-size: 1.3rem;
    }

    .network-step p {
        font-size: 1rem;
    }

    .confirm-btn {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .network-setup-page .container, .time-calibration-page .container {
        padding: 1.5rem;
    }

    .step-item {
        padding: 1.2rem;
    }

    .step-title {
        font-size: 1rem;
    }

    .step-number {
        width: 24px;
        height: 24px;
        line-height: 24px;
        font-size: 12px;
    }

    .step-title i {
        font-size: 1.1rem;
    }

    .network-step p {
        font-size: 0.9rem;
    }

    .confirm-btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); /* 调整列宽 */
    gap: 1.5rem; /* 调整间距 */
    margin: 2.5rem 0;
}

.feature-item {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem 1rem;
    text-align: center;
    transition: all var(--transition-speed) ease;
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--primary-color);
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
}

.feature-item:hover::before {
    opacity: 1;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.feature-item i {
    font-size: 2rem;
    margin-bottom: 0.8rem;
    transition: all 0.3s;
}

.feature-item:nth-child(1) i { color: var(--file-color); }
.feature-item:nth-child(2) i { color: var(--alarm-color); }
.feature-item:nth-child(3) i { color: var(--weather-color); }
.feature-item:nth-child(4) i { color: var(--reading-color); }
.feature-item:nth-child(5) i { color: var(--clock-color); }
.feature-item:nth-child(6) i { color: var(--network-color); }
.feature-item:nth-child(7) i { color: var(--timer-color); }
.feature-item:nth-child(8) i { color: var(--settings-color); }

.feature-item h4 {
    margin: 0.5rem 0 0;
    font-weight: 500;
    color: var(--text-primary);
}

    .feature-list .feature-item i {
        font-size: 2.5rem;
        color: var(--primary-color);
        margin-bottom: 0.8rem;
    }

    .feature-list .feature-item h4 {
        font-size: 1.2rem;
        color: var(--text-primary);
        margin-bottom: 0.4rem;
    }

    .feature-list .feature-item p {
        font-size: 0.9rem;
        color: var(--text-secondary);
    }

/* Styles for step content lists */
.step-text ul {
    list-style: none;
    padding-left: 0;
    margin: 1.5rem 0;
}

.step-text ul li {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    font-size: 1.05rem;
    display: flex;
    align-items: center;
}

.step-text ul li i {
    margin-right: 0.8rem;
    color: var(--accent-color);
    font-size: 1.2rem;
}





/* Apple风格导航按钮 */
.navigation-buttons {
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    border-top: 1px solid var(--separator-color);
    background: var(--surface-color);
    gap: var(--spacing-md);
}

/* Apple风格按钮基础样式 */
.btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-medium);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-small);
    min-height: 44px; /* Apple最小触摸目标 */
    font-family: var(--font-family);
    letter-spacing: -0.022em;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left var(--transition-medium);
}

.btn:hover::before {
    left: 100%;
}

.btn:disabled {
    background: var(--secondary-color);
    color: var(--text-tertiary);
    cursor: not-allowed;
    opacity: 0.6;
}

.btn:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

.btn:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: var(--shadow-small);
    transition: all 0.1s;
}

/* 次要按钮样式 */
.btn-secondary {
    background: var(--surface-color);
    color: var(--primary-color);
    border: 1px solid var(--separator-color);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-color);
    border-color: var(--primary-color);
    color: var(--primary-dark);
}

/* 主要按钮样式 */
.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
}

.quick-links {
    padding: 2rem;
    background-color: #f1f3f5;
    text-align: center;
}

.quick-links h2 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.link-btn {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    background-color: var(--surface-color);
    color: var(--text-primary);
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius);
    margin: 0.5rem;
    transition: all var(--transition-speed) ease;
    border: 1px solid var(--border-color);
    box-shadow: var(--box-shadow);
}

.link-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.1);
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.link-btn i {
    margin-right: 0.5rem;
    transition: all 0.3s;
}

.link-btn:nth-child(2) i { color: var(--network-color); }
.link-btn:nth-child(3) i { color: var(--reading-color); }
.link-btn:nth-child(4) i { color: var(--alarm-color); }
.link-btn:nth-child(5) i { color: var(--success-color); }

.confirmation-box {
    background: linear-gradient(to right, rgba(52, 152, 219, 0.05), rgba(52, 152, 219, 0.1));
    border: 1px solid rgba(52, 152, 219, 0.2);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.confirm-btn {
    background-color: var(--success-color);
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius);
    transition: background-color var(--transition-speed);
}

.confirm-btn:hover:not(:disabled) {
    background-color: #218838;
}

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

/* 响应式设计 */
/* 小屏幕设备 (手机, 600px 以下) */
@media only screen and (max-width: 600px) {
    .container {
        padding: 0.5rem;
    }
    .guide-container {
        padding: 1rem;
        margin: 0;
        border-radius: 0;
    }
    h1 {
        font-size: 1.3rem;
    }
    h2 {
        font-size: 1.1rem;
    }
    .feature-item {
        padding: 0.8rem;
    }
    .feature-item i {
        font-size: 2.5rem;
    }
    
    .step-image {
        margin: 0.8rem 0;
    }
}

/* 中等屏幕设备 (平板电脑, 768px 以下) */
@media only screen and (max-width: 768px) {
    .feature-item {
        padding: 1.2rem 0.8rem;
    }
    
    .feature-item i {
        font-size: 1.5rem;
    }
    
    .confirmation-box {
        flex-direction: column;
        gap: 0.8rem;
        text-align: center;
    }
    
    .confirmation-box p {
        margin-bottom: 0;
    }
    
    .guide-content h2 {
        font-size: 1.3rem;
    }
}

/* 大屏幕设备 (笔记本电脑/台式机, 992px 以上) */
@media only screen and (min-width: 992px) {
    .container {
        padding: 3rem 1rem;
    }
    
    .guide-container {
        box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    }
    
    .feature-list {
        gap: 1.5rem;
    }
}

/* 触摸设备优化 */
@media (hover: none) {
    .btn:hover, .link-btn:hover, .feature-item:hover {
        transform: none;
    }
    
    .btn:active {
        transform: scale(0.98);
    }
    
    .link-btn:active {
        background-color: #f5f5f5;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    /* 可以在这里添加深色模式样式，如果需要的话 */
}

.step-image {
    max-width: 100%;
    margin: 1rem 0;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    display: block;
    transition: transform 0.3s ease;
}

.step-image:hover {
    transform: scale(1.02);
}

/* 固件更新页面样式 */
.firmware-page .important-notice {
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
    color: white;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.3);
}

.firmware-image {
    margin: 20px 0;
    text-align: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.firmware-image .step-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 10px;
}

.firmware-image .image-caption {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
    font-weight: 500;
}

/* Additional responsive styles for firmware page */
@media (max-width: 480px) {
    .firmware-page .firmware-step .step-text {
        font-size: 14px;
    }

    .firmware-page .sub-operation {
        font-size: 13px;
    }

    .firmware-image {
        padding: 10px;
        margin: 15px 0;
    }

    .firmware-image .image-caption {
        font-size: 13px;
    }
}