/* 暗色模式样式 - Apple-inspired Dark Mode */

:root {
    /* 亮色模式颜色 */
    --bg-primary: #fbfbfd;
    --bg-secondary: #ffffff;
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --border-color: rgba(0, 0, 0, 0.1);
    --card-bg: #ffffff;
    --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --nav-bg: rgba(251, 251, 253, 0.8);
    --nav-border: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    /* 暗色模式颜色 */
    --bg-primary: #000000;
    --bg-secondary: #1d1d1f;
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1a6;
    --border-color: rgba(255, 255, 255, 0.1);
    --card-bg: #2c2c2e;
    --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
    --nav-bg: rgba(29, 29, 31, 0.8);
    --nav-border: rgba(255, 255, 255, 0.1);
}

/* 主题切换按钮 */
.theme-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

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

.theme-toggle i {
    font-size: 24px;
    color: var(--text-primary);
    transition: transform 0.3s ease;
}

.theme-toggle:hover i {
    transform: rotate(180deg);
}

/* 暗色模式下的全局样式 */
[data-theme="dark"] body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

[data-theme="dark"] .nav-container {
    background: var(--nav-bg);
    border-bottom-color: var(--nav-border);
}

[data-theme="dark"] .logo,
[data-theme="dark"] .nav-link,
[data-theme="dark"] .mobile-logo,
[data-theme="dark"] .main-nav .logo,
[data-theme="dark"] a.logo,
[data-theme="dark"] .nav-container .logo {
    color: var(--text-primary) !important;
}

/* 暗色模式下导航栏内的英文副标题 */
[data-theme="dark"] .nav-container span,
[data-theme="dark"] .main-nav span,
[data-theme="dark"] .nav-wrapper span {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .nav-link:hover {
    color: var(--text-primary);
    opacity: 0.8;
}

[data-theme="dark"] .dropdown-horizontal {
    background: rgba(29, 29, 31, 0.95);
    border-top-color: var(--nav-border);
}

[data-theme="dark"] .menu-section a {
    color: var(--text-primary);
}

[data-theme="dark"] .card,
[data-theme="dark"] .feature-item,
[data-theme="dark"] .support-item,
[data-theme="dark"] .project-item,
[data-theme="dark"] .equipment-card,
[data-theme="dark"] .service-item {
    background: var(--card-bg);
    border-color: var(--border-color);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6 {
    color: var(--text-primary);
}

[data-theme="dark"] p {
    color: var(--text-secondary);
}

[data-theme="dark"] footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

[data-theme="dark"] footer p,
[data-theme="dark"] footer a {
    color: var(--text-secondary);
}

[data-theme="dark"] .mobile-menu {
    background: #000000;
}

[data-theme="dark"] .mobile-menu-link {
    color: var(--text-primary);
    border-bottom-color: var(--border-color);
}

/* 暗色模式下的标题样式 */
[data-theme="dark"] .section-title,
[data-theme="dark"] h2.section-title,
[data-theme="dark"] div.section-title,
[data-theme="dark"] #processing .section-title,
[data-theme="dark"] #analysis .section-title,
[data-theme="dark"] #services .section-title,
[data-theme="dark"] #services-2 .section-title {
    color: var(--text-primary) !important;
    font-weight: 700 !important;
}

/* 暗色模式下的服务区域 */
[data-theme="dark"] .service-section {
    background: transparent;
}

[data-theme="dark"] .service-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .service-item:hover {
    background: #3a3a3c;
}

[data-theme="dark"] .service-title {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .service-dropdown,
[data-theme="dark"] .accordion-content {
    color: var(--text-secondary);
    background: var(--card-bg) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .service-dropdown h4,
[data-theme="dark"] .accordion-content h4 {
    color: var(--text-primary);
}

[data-theme="dark"] .service-dropdown p,
[data-theme="dark"] .accordion-content p {
    color: var(--text-secondary);
}

[data-theme="dark"] .accordion-content {
    border-top-color: var(--border-color) !important;
}

[data-theme="dark"] .notice-text {
    color: #ff9500;
}

/* 确保暗色模式下所有使用primary-color的地方都正确显示 */
[data-theme="dark"] {
    --primary-color: #f5f5f7;
}

[data-theme="dark"] .contact-bar {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

/* 暗色模式下的设备卡片 */
[data-theme="dark"] .equipment-grid {
    background: transparent;
}

[data-theme="dark"] .equipment-card h3 {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .equipment-card p {
    color: var(--text-secondary);
}

/* 暗色模式下的动画区域 */
[data-theme="dark"] .animated-section {
    background: transparent;
}

/* 仅调整 hero 区域的背景色，不覆盖原有背景图 */
[data-theme="dark"] .hero {
    background-color: var(--bg-secondary);
}

[data-theme="dark"] .hero .section-title {
    color: #222 !important;
}

[data-theme="dark"] .hero .hero-text {
    color: var(--text-secondary) !important;
}

/* viewport页面暗色模式样式 */
[data-theme="dark"] .category-card {
    background: var(--card-bg) !important;
    border-color: var(--border-color) !important;
    border: 1px solid var(--border-color) !important;
}

[data-theme="dark"] .category-title {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .category-count {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .category-icon {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .category-card:hover {
    background: #3a3a3c !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6) !important;
}

[data-theme="dark"] .hero-title {
    color: var(--text-primary) !important;
    background: linear-gradient(90deg, var(--text-primary), var(--text-secondary)) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
}

[data-theme="dark"] .card {
    background: var(--card-bg) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .card-title {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .card-text {
    color: var(--text-secondary) !important;
}

/* 平滑过渡 */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .theme-toggle {
        bottom: 20px;
        right: 20px;
        width: 48px;
        height: 48px;
    }
    
    .theme-toggle i {
        font-size: 20px;
    }
}