/* CSS 变量定义 - 极致暗色系 (Ultra Dark Mode) - 高对比度 */
:root {
    /* 调色板 - Neutral/True Black 系列 */
    --primary-color: #FFFFFF; /* 纯白，确保最高亮度 */
    --primary-hover: #E5E5E5;
    
    --accent-color: #60A5FA; 
    
    --text-primary: #FFFFFF; /* 纯白，确保最高亮度 */
    --text-secondary: #E4E4E7; /* Zinc 200 - 进一步提亮，极致对比度 */
    --text-tertiary: #D4D4D8;  /* Zinc 300 - 辅助文字也更清晰 */
    
    --bg-body: #050505;    /* 接近纯黑 */
    --bg-surface: #121212; /* 标准深色模式表面色 */
    --bg-subtle: #18181B;  /* Zinc 900 */
    --bg-accent: #27272A;  /* Zinc 800 */
    
    --border-light: #27272A;
    --border-medium: #52525B; /* Zinc 600 - 边框更明显 */
    
    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 40px;
    --spacing-2xl: 80px;
    
    /* 圆角 - 增加棱角感 (Angularity) */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 8px;
    --radius-full: 9999px; /* 按钮保持胶囊或可改为小圆角 */
    
    /* 高级感阴影 - 深色背景下的强化投影 */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.5);
    
    /* 边框高光 - 增加立体感 */
    --border-highlight: 1px solid rgba(255, 255, 255, 0.1);
}

/* 重置样式 */
* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background-color: var(--bg-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: inherit; transition: color 0.2s; }
ul { list-style: none; }

/* 容器 */
.container {
    max-width: 1100px; /* 稍微收窄，增加精致感 */
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* 按钮通用样式 - 胶囊状 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    font-weight: 700; /* 加粗字体，增加可读性 */
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    gap: 8px;
    letter-spacing: 0.02em; /* 稍微增加字间距 */
}

.btn-primary {
    background-color: var(--primary-color);
    color: #000000; /* 纯黑文字，最大化对比度 */
    box-shadow: var(--shadow-md);
}
.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-medium);
    color: var(--text-primary); /* 提升至主要文字颜色 */
}
.btn-outline:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
    background: var(--bg-subtle);
}

/* Language Button Styling */
.lang-btn {
    padding: 6px 16px;
    font-size: 0.95rem; /* Increased from 0.85rem */
    border: none;
    border-radius: 4px; /* Rectangular with slight radius */
    color: #000000; /* Black text */
    transition: all 0.2s;
    background: #FFFFFF; /* White background */
    height: 36px; /* Increased from 32px */
    display: flex;
    align-items: center;
    font-family: inherit;
    font-weight: 700; /* Increased weight */
    letter-spacing: 0.05em;
}
.lang-btn:hover {
    background: #E5E5E5; /* Light gray hover */
    color: #000000;
    transform: translateY(-1px);
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.btn-block { width: 100%; }

/* 导航栏 - 悬浮圆角矩形 (Floating Rounded Rect) - 增加棱角感 */
.navbar {
    height: 52px; /* 减少高度 68px -> 52px (约 -24%) */
    display: flex;
    align-items: center;
    position: sticky;
    top: 24px;
    width: calc(100% - 48px);
    max-width: 960px;
    margin: 24px auto 0;
    background: rgba(18, 18, 18, 0.9); /* Neutral 900 90% */
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: none; /* 移除边框线 */
    border-radius: 16px; /* 减小圆角，增加棱角感 */
    z-index: 100;
    box-shadow: 0 4px 20px -1px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.05); /* 阴影替代边框 + 微弱高光 */
    transition: all 0.3s ease;
}

/* 当页面滚动时，可以通过 JS 添加 .scrolled 类来调整样式（可选，目前保持一致） */

.navbar .container {
    width: 100%;
    padding: 0 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

/* 紧凑 Hero 区域 - 暗夜极光 */
.hero-compact {
    padding: 80px 0 60px;
    background: radial-gradient(circle at 50% 0%, #171717 0%, #050505 70%); /* Neutral 900 -> Black */
    text-align: center;
    border-bottom: none;
    box-shadow: 0 4px 20px -5px rgba(0, 0, 0, 0.8); /* 有阴影的不明显分界 */
    position: relative;
    z-index: 1;
}
.hero-text h1 {
    font-size: clamp(1.5rem, 3.5vw, 3.2rem); /* 响应式字体，确保不换行 */
    line-height: 1.2;
    font-weight: 800;
    margin-bottom: 100px;
    letter-spacing: -0.02em;
    white-space: nowrap; /* 强制不换行 */
    color: #FFFFFF;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

/* English Mode Adjustment for Hero Title */
html[lang="en"] .hero-text h1 {
    font-size: clamp(1.5rem, 3vw, 2.5rem); /* Slightly smaller for English */
    white-space: normal; /* Allow wrapping for long English text */
    max-width: 900px; /* Constrain width to ensure nice wrapping if needed */
    margin-left: auto;
    margin-right: auto;
}
.hero-text .tagline {
    font-size: 1.05rem;
    color: #A1A1AA;
    margin-bottom: 8px;
    font-weight: 500;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 0.7;
}

/* 高级感输入框 */
.download-bar {
    max-width: 540px;
    margin: 0 auto;
}
.input-group {
    display: flex;
    gap: 8px;
    background: var(--bg-surface);
    padding: 4px; /* Reduced padding */
    border-radius: var(--radius-full); /* 椭圆/胶囊边界线 */
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-medium);
    transition: all 0.3s ease;
}
.input-group:focus-within {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15), var(--shadow-md); /* 蓝色光晕 */
    transform: translateY(-1px);
}
.input-group input {
    flex: 1;
    border: none;
    padding: 8px 20px; /* Reduced padding */
    font-size: 1rem;
    outline: none;
    background: transparent;
    color: var(--text-primary);
}
.input-group .btn {
    padding: 8px 24px; /* Adjust button to match input height better */
}

.input-group input::placeholder {
    color: #94A3B8;
}
.input-group input.input-invalid {
    border: 1px solid #EF4444;
    border-radius: var(--radius-md);
}
.form-hint-error {
    margin-top: 8px;
    font-size: 0.85rem;
    color: #EF4444;
    display: none;
}
.form-hint-error.show {
    display: block;
}
.download-hint {
    margin-top: 16px;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

/* UI Showcase - 悬浮与深度 */
.ui-showcase {
    padding: 40px 0 100px;
    background: var(--bg-body); /* 统一暗色背景 */
    border-bottom: 1px solid var(--border-light);
}
.showcase-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    grid-template-rows: repeat(2, 220px);
    gap: 32px;
}
.showcase-item {
    background: var(--bg-surface); /* 深色表面 */
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-medium); /* 明显边框 */
    position: relative;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.showcase-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--text-secondary); /* 悬浮时边框亮起 */
}
.showcase-item.large {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
}
.demo-placeholder {
    width: 100%;
    height: 100%;
    background: #000000; /* Pure Black */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary); /* 提升对比度 */
}
.demo-label {
    margin-bottom: 20px;
    font-weight: 600;
    color: var(--text-primary); /* 标签提亮 */
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    display: none; /* Hide label */
}
.demo-anim {
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    background: var(--bg-surface);
    border-radius: 0; /* Remove radius */
    box-shadow: none; /* Remove shadow if needed or keep it */
    animation: pulse 4s ease-in-out infinite;
    border: none; /* Remove border */
}
.demo-anim.delayed { animation-delay: 1.5s; }
.demo-anim.delayed-2 { animation-delay: 3s; }

/* Demo Image Style */
.demo-img {
    width: 100%;
    height: 100%;
    object-fit: contain; /* 保持图片比例，完整显示 */
    display: block;
    background: #000000; /* 背景纯黑 */
}

@keyframes pulse {
    0% { transform: scale(0.98); opacity: 0.5; border-color: var(--border-light); }
    50% { transform: scale(1); opacity: 1; border-color: var(--text-secondary); }
    100% { transform: scale(0.98); opacity: 0.5; border-color: var(--border-light); }
}

/* Interactive Features (New) */
.features-interactive {
    padding: 20px 0; /* Further reduced padding */
    background: #000000; /* Pure Black as requested */
}
.section-header {
    text-align: center;
    margin-bottom: 24px; /* Further reduced margin */
}
.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* Privacy Integrated Styling */
.privacy-integrated {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    max-width: 900px;
    margin: 0 auto 32px;
    padding: 16px 24px;
    /* background: var(--bg-surface);  Optional: background for better separation if needed, currently keeping it clean */
    border-radius: var(--radius-lg);
    /* border: 1px solid var(--border-medium); Optional: border */
    text-align: left;
}

.privacy-integrated .privacy-icon {
    flex-shrink: 0;
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.privacy-integrated .privacy-text-box h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.privacy-integrated .privacy-text-box p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

@media (max-width: 768px) {
    .privacy-integrated {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
}

.interactive-container {
    display: flex;
    flex-direction: column;
    gap: 0; /* Remove gap between menu and content since menu is inside */
    align-items: center;
    margin-bottom: 60px;
}

/* Feature Menu Bar (Refined) */
.feature-menu-bar {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    z-index: 20;
    pointer-events: auto;
    background: transparent; /* Remove background to blend */
    border-bottom: 1px solid rgba(255, 255, 255, 0.05); /* Very subtle border */
    backdrop-filter: blur(10px);
}

.menu-item {
    flex: 1; /* Occupy full width evenly */
    font-size: 0.9rem; /* Smaller font for distinction */
    font-weight: 600;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 16px 0;
    text-align: center;
    border-radius: 0;
    transition: all 0.3s ease;
    background: transparent;
    border: none;
    position: relative;
}

.menu-item:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
    transform: none;
}

.menu-item.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    border: none;
    box-shadow: none;
}
.menu-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-color);
}

/* Feature Description Overlay (Refined) */
.feature-description-overlay {
    position: absolute;
    top: 70px; /* Below the menu bar */
    left: 0;
    width: 100%;
    text-align: left; /* Changed from center to left */
    padding: 0 40px;
    z-index: 10;
    pointer-events: none;
}

.feature-desc-text {
    font-size: 1rem; /* Distinct size from title */
    color: rgba(255, 255, 255, 0.7); /* Light color font */
    font-weight: 500;
    line-height: 1.5;
    background: transparent; /* Remove background */
    padding: 0;
    border-radius: 0;
    border: none; /* Remove border */
    box-shadow: none; /* Remove shadow */
    backdrop-filter: none;
    display: inline-block;
    animation: fadeInText 0.3s ease;
}

/* Feature Display Area */
.feature-display-area {
    width: 100%;
    background: transparent; /* 背景颜色调整为透明 */
    border-radius: 0; /* Square corners */
    border: none; /* No border */
    overflow: hidden;
    height: 720px; /* Further Increased height */
    position: relative;
    box-shadow: none; /* No shadow for no obvious division */
    display: flex;
    flex-direction: column;
    padding-top: 140px; /* Push content down below overlay */
}
/* Controls removed, tabs removed */
.display-controls, .feature-tabs, .feature-tab, .feature-tab-icon, .feature-tab-text {
    display: none;
}
.demo-content {
    display: none;
    width: 100%;
    height: 100%;
    animation: fadeIn 0.4s ease;
}
.demo-content.active {
    display: flex;
    flex: 1;
    min-height: 0; /* 让 flex 子项正确计算高度，GIF 才能填满 */
}
.demo-content .demo-placeholder {
    flex: 1;
    min-height: 0; /* flex 子项可收缩，GIF 区域正确填满 */
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 900px) {
    .interactive-container {
        flex-direction: column;
    }
    .feature-display-area {
        width: 100%;
        height: 400px;
    }
}


/* Privacy Section - 信任感 */
/* Privacy Callout - 简要提示 */
.privacy-callout {
    margin-top: 20px;
    padding: 12px 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.privacy-label {
    font-weight: 800;
    color: var(--text-primary);
}
.privacy-callout .privacy-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Footer */
.footer {
    padding: 60px 0;
    text-align: center;
    color: var(--text-tertiary);
    border-top: 1px solid var(--border-light);
    background: var(--bg-body); /* 保持一致 */
}

/* Contact Section - Clean & Fresh */
.contact-section {
    padding: 60px 0;
    background: transparent;
    border-radius: 0;
    margin: 0;
    border: none;
    box-shadow: none;
}
.contact-container {
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
}
/* 联系我们 - 两列布局 */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    align-items: start;
    text-align: left;
}
/* .contact-left, .contact-right handled by grid items naturally */

.contact-header {
    margin-bottom: 40px; /* Reduced from potential larger value */
}
.contact-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 8px; /* Reduced margin */
    color: var(--text-primary);
}
.contact-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}
.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 12px; /* Smaller gap */
    margin-bottom: 0; /* Align with top */
}
.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px; /* Smaller padding */
    background: transparent; /* Remove grey background */
    border-radius: 0; /* Right angles */
    border: none; /* Remove border */
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5); /* Use shadow for boundary */
    transition: all 0.3s ease;
    text-align: left;
}
.contact-item:hover {
    background: var(--bg-surface);
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.8);
    transform: translateY(-2px);
}
.contact-item svg {
    width: 20px; /* Smaller icon */
    height: 20px;
    color: var(--accent-color);
}
.contact-item h4 {
    font-size: 1.2rem; /* Larger text */
    font-weight: 700; /* Bold */
    color: var(--text-primary); /* Brighter color */
    margin-bottom: 2px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.contact-item a {
    font-size: 0.9rem; /* Smaller text */
    font-weight: 400; /* Normal weight */
    color: var(--text-secondary); /* Dimmer color */
}
.contact-form-area {
    width: 100%;
}

.contact-form-split {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Module Styling */
.form-module {
    background: var(--bg-surface);
    padding: 16px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-medium);
    position: relative;
    transition: all 0.2s ease;
}

.form-module:focus-within {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(96, 165, 250, 0.2);
}

.unified-email {
    width: 100%;
    height: 24px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    font-family: inherit;
}

.unified-textarea {
    width: 100%;
    min-height: 120px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    resize: none;
    display: block;
    font-family: inherit;
    margin-bottom: 40px; /* Space for button */
}

.unified-submit-btn {
    position: absolute;
    bottom: 12px;
    right: 12px;
    padding: 8px 20px;
    font-size: 0.9rem;
    z-index: 10;
}

/* Success Modal - 仅保留成功提示 */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}
.modal.show { display: flex; }
.modal-content {
    background: var(--bg-surface);
    padding: 40px;
    border-radius: 24px;
    width: 90%;
    max-width: 400px;
    text-align: center;
    border: 1px solid var(--border-medium);
    box-shadow: var(--shadow-xl);
    animation: slideUpFade 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.success-icon {
    width: 64px;
    height: 64px;
    background: rgba(16, 185, 129, 0.1);
    color: #34D399;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-text h1 { font-size: 2rem; }
    .showcase-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    .contact-grid {
        flex-direction: column;
    }
    .input-group {
        flex-direction: column;
        padding: 8px;
        border-radius: var(--radius-lg);
    }
    .input-group input {
        text-align: center;
        padding: 12px;
    }
    .btn { width: 100%; }
}

/* 新增导航栏与下载区样式 */
.nav-right {
    display: flex;
    align-items: center;
    gap: 24px;
}
.nav-link {
    font-size: 0.95rem;
    font-weight: 700; /* 加粗字体，提升可读性 */
    color: var(--text-secondary);
    transition: all 0.2s;
    position: relative;
    padding: 4px 0;
}
.nav-link:hover {
    color: var(--text-primary);
}
/* 简单的下划线动效 */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.2s ease;
}
.nav-link:hover::after {
    width: 100%;
}

.download-section {
    padding: 100px 0 120px;
    background: radial-gradient(circle at 50% 100%, #171717 0%, #050505 70%);
    border-top: 1px solid var(--border-light);
    text-align: center;
}
.download-cta {
    margin-bottom: 40px;
}
.download-cta h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}
.download-cta p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .nav-right .nav-link {
        display: none; /* 移动端暂时隐藏导航链接，保持简洁 */
    }
}
/* 集成能力展示 - Integrations */
.integrations {
    padding: 40px 0 40px; /* Reduced bottom padding */
    background: var(--bg-body);
    border-top: none;
    box-shadow: 0 -4px 20px -5px rgba(0, 0, 0, 0.8); /* 有阴影的不明显分界 */
    position: relative;
    z-index: 1;
}
.coming-soon-note {
    color: #60A5FA; /* 明显提示色 */
    font-weight: 800;
    margin-bottom: 12px;
    font-size: 1.2rem; /* Increased font size */
}
.integration-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 32px;
    max-width: 100%;
    margin: 0 auto 40px; /* Reduced bottom margin */
}
/* Mac Icon Styling */
.mac-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
    background: transparent; /* Remove background */
    box-shadow: none; /* Remove shadow */
    border-radius: 0; /* Remove border radius */
}
.mac-icon svg {
    width: 48px; /* Slightly larger icon */
    height: 48px;
}
.integration-item:hover .mac-icon {
    transform: scale(1.1);
    box-shadow: none; /* Remove hover shadow */
}

/* Brand Colors - Removed backgrounds */
.brand-slack { background: transparent; }
.brand-discord { background: transparent; }
.brand-telegram { background: transparent; }
.brand-whatsapp { background: transparent; }
.brand-github { background: transparent; }
.brand-linear { background: transparent; }
.brand-jira { background: transparent; }
.brand-notion { background: transparent; }
.brand-obsidian { background: transparent; }

/* Integration Updates */
.integration-item {
    display: flex;
    flex-direction: column; /* Vertical stack */
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px; /* Reduced padding since border removed */
    width: auto; /* Let grid control width */
    height: auto; /* Allow height to adjust */
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: transparent; /* Remove background */
    border: none; /* Remove border */
    border-radius: 0;
    box-shadow: none; /* Remove shadow */
}
/* Removed old .integration-item svg styles as they are now in .mac-icon */

.integration-item:hover {
    transform: translateY(-4px);
    background: transparent; /* Ensure no bg on hover */
    border-color: transparent;
    box-shadow: none;
}
.integration-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.3s;
    margin-top: 4px;
}
.integration-item:hover .integration-name {
    color: var(--text-primary);
}
/* 移除旧的 mask 和 brand 样式 */

/* 导航栏链接微调 - 确保没有套娃感 */
.nav-right .btn-outline {
    /* 如果有残留的btn-outline样式，强制覆盖为普通链接样式 */
    border: none;
    background: transparent;
    padding: 4px 0;
    color: var(--text-secondary);
    font-weight: 500;
}
.nav-right .btn-outline:hover {
    background: transparent;
    color: var(--text-primary);
}