/* ============================================
   DevStudio Pro - 组件样式 v2.0
   所有硬编码颜色已替换为 CSS 变量
   导航 / Hero / 卡片 / 统计 / 团队 / 评价 / 页脚 等
   ============================================ */

/* ============================================
   玻璃拟态通用卡片
   ============================================ */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow-glass);
    transition: all var(--transition-base);
}
.glass-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--color-border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(var(--color-primary-rgb), 0.08);
}

/* ============================================
   导航栏
   ============================================ */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: var(--z-sticky);
    background: transparent;
    transition: all var(--transition-base);
}
.site-header.scrolled,
.nav-style-fixed .site-header {
    background: rgba(var(--color-primary-rgb), 0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
}

.main-navigation .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 2rem;
}

/* Logo */
.nav-brand { flex-shrink: 0; }
.site-logo-text {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-primary) !important;
    text-decoration: none;
}
.logo-icon { display: flex; align-items: center; }
.logo-icon svg { width: 32px; height: 32px; }
.logo-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.nav-brand img { height: 36px; width: auto; }

/* 菜单 */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0; padding: 0;
}
.nav-menu > li > a {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
    letter-spacing: 0.02em;
}
.nav-menu > li > a:hover,
.nav-menu > li.current-menu-item > a,
.nav-menu > li.current_page_item > a {
    color: var(--color-primary) !important;
}
.nav-menu > li.current-menu-item > a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 2px;
    border-radius: 1px;
    background: var(--gradient-primary);
}

/* 下拉箭头 */
.nav-arrow {
    display: inline-flex;
    margin-left: 4px;
    opacity: 0.5;
    transition: transform var(--transition-fast);
}
.nav-menu > li:hover .nav-arrow { transform: rotate(180deg); opacity: 1; }

/* 子菜单 */
.sub-menu-container {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all var(--transition-base);
}
.nav-menu > li:hover > .sub-menu-container {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.sub-menu {
    list-style: none;
    margin: 0.5rem 0 0;
    padding: 0.5rem;
    background: var(--color-bg-elevated);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}
.sub-menu li a {
    display: block;
    padding: 0.5rem 0.75rem;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}
.sub-menu li a:hover {
    color: var(--color-primary) !important;
    background: rgba(var(--color-primary-rgb), 0.06);
}

/* CTA 按钮 */
.nav-cta { flex-shrink: 0; }
.nav-cta-link.btn-primary {
    white-space: nowrap;
    font-size: var(--text-sm);
}

/* 模式切换按钮 */
.mode-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    background: transparent;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-left: 0.25rem;
}
.mode-toggle:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    box-shadow: var(--shadow-glow-primary);
}
.mode-icon--light { display: none; }
.light-mode .mode-icon--dark { display: none; }
.light-mode .mode-icon--light { display: flex; }

/* 汉堡菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px; height: 40px;
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 8px;
}
.hamburger-line {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 1px;
    transition: all var(--transition-base);
}
.menu-toggle.is-active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}
.menu-toggle.is-active .hamburger-line:nth-child(2) { opacity: 0; }
.menu-toggle.is-active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* 移动端菜单面板 */
.mobile-menu-panel {
    position: fixed;
    top: 0; right: 0;
    width: min(360px, 85vw);
    height: 100vh;
    background: var(--color-bg-elevated);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-left: 1px solid var(--glass-border);
    z-index: var(--z-modal);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    overflow-y: auto;
}
.mobile-menu-panel.is-open { transform: translateX(0); }
.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--glass-border);
}
.mobile-menu-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}
.mobile-menu-close:hover { color: var(--color-error); border-color: rgba(var(--color-accent-rgb), 0.3); }

.mobile-nav-menu {
    padding: 1rem 1.5rem;
    list-style: none;
}
.mobile-nav-menu .mobile-menu-item + .mobile-menu-item {
    border-top: 1px solid rgba(var(--color-primary-rgb), 0.04);
}
.mobile-menu-link {
    display: block;
    padding: 0.75rem 0;
    font-size: 1rem;
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}
.mobile-menu-link:hover { color: var(--color-primary); }
.mobile-menu-link.has-submenu { display: flex; align-items: center; justify-content: space-between; }

.mobile-menu-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--glass-border);
}
.mobile-social-links {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.social-link {
    padding: 0.35rem 0.75rem;
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: all var(--transition-fast);
}
.social-link:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

/* 遮罩层 */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: var(--color-bg-overlay);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: calc(var(--z-modal) - 1);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}
.mobile-menu-overlay.is-visible {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   按钮系统
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.5rem;
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    line-height: 1.4;
    text-decoration: none;
    border: none;
    border-radius: var(--btn-radius);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    box-shadow: var(--btn-shadow);
}
.btn::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.6s ease;
}
.btn:hover::before { left: 100%; }
.btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* Primary 按钮 */
.btn-primary {
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.15), rgba(var(--color-secondary-rgb), 0.15));
    border: 1px solid rgba(var(--color-primary-rgb), 0.3);
    color: var(--color-primary);
    box-shadow: var(--btn-shadow), inset 0 1px 0 rgba(255,255,255,0.05);
}
.btn-primary:hover {
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.25), rgba(var(--color-secondary-rgb), 0.2));
    border-color: var(--color-primary);
    box-shadow: var(--btn-shadow-hover), 0 0 20px rgba(var(--color-primary-rgb), 0.15);
    transform: translateY(-2px);
}
.btn-primary:active { transform: translateY(0); }

/* Outline 按钮 */
.btn-outline {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--color-text-secondary);
}
.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.05);
    transform: translateY(-2px);
}

/* Ghost 按钮 */
.btn-ghost {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
}
.btn-ghost:hover { color: var(--color-primary); }

/* 尺寸变体 */
.btn-sm { padding: 0.4rem 1rem; font-size: var(--text-xs); border-radius: var(--radius-sm); }
.btn-lg { padding: 0.9rem 2rem; font-size: var(--text-base); border-radius: var(--radius-lg); }

/* 图标 */
.btn-icon { display: flex; align-items: center; font-style: normal; }

/* ============================================
   Hero 区域
   ============================================ */
.hero-section {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    min-height: 100dvh;
    padding: 120px 0 80px;
    overflow: hidden;
    background: var(--hero-bg);
}
#particles-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

/* 渐变光斑 */
.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    opacity: 0.5;
}
.hero-glow--left {
    width: 500px; height: 500px;
    top: 10%;
    left: -10%;
    background: radial-gradient(circle, rgba(var(--color-primary-rgb), 0.15), transparent 70%);
}
.hero-glow--right {
    width: 400px; height: 400px;
    bottom: 20%;
    right: -5%;
    background: radial-gradient(circle, rgba(var(--color-secondary-rgb), 0.15), transparent 70%);
}
.hero-glow--center {
    width: 300px; height: 300px;
    top: 40%;
    left: 50%;
    transform: translateX(-50%);
    background: radial-gradient(circle, rgba(var(--color-accent-rgb), 0.08), transparent 70%);
}

/* Hero 内容 */
.hero-content {
    position: relative;
    text-align: center;
    max-width: 800px;
    z-index: 2;
}
.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: var(--font-extrabold);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
    color: var(--color-text-primary);
}
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 打字机效果 */
.typing-text {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    font-weight: var(--font-normal);
    margin-bottom: 2rem;
    font-family: var(--font-mono);
}
.typing-cursor {
    display: inline-block;
    width: 2px;
    height: 1.2em;
    background: var(--color-primary);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: blink 1s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* Hero 徽章 */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    color: var(--color-primary);
    border: 1px solid rgba(var(--color-primary-rgb), 0.2);
    border-radius: var(--radius-full);
    background: rgba(var(--color-primary-rgb), 0.05);
    margin-bottom: 1.5rem;
}

/* Hero CTA 按钮 */
.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Hero 底部统计 */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
}
.hero-stat { text-align: center; }
.hero-stat-number {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-stat-label {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}
.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: var(--glass-border);
}
.hero-description {
    font-size: clamp(0.875rem, 1.5vw, 1rem);
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}
.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-primary);
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: scroll-bounce 2s ease-in-out infinite;
}
@keyframes scroll-bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}
.scroll-indicator__text {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    writing-mode: vertical-lr;
    transform: rotate(180deg);
}
.scroll-indicator__line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
}

/* ============================================
   默认项目卡片（无CPT数据时使用）
   ============================================ */
.project-card-inner {
    padding: 2rem;
}
.project-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    background: rgba(var(--color-primary-rgb), 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}
.project-category {
    font-size: var(--text-xs);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: var(--font-semibold);
    margin-bottom: 0.5rem;
}
.project-title {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}
.project-desc {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 1rem;
}
.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}
.project-tag {
    font-size: var(--text-xs);
    padding: 0.2rem 0.6rem;
    background: rgba(var(--color-secondary-rgb), 0.1);
    border: 1px solid rgba(var(--color-secondary-rgb), 0.2);
    border-radius: var(--radius-full);
    color: var(--color-secondary);
}

/* ============================================
   默认团队卡片增强
   ============================================ */
.team-desc {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-top: 0.5rem;
}

/* ============================================
   技术栈分类区域
   ============================================ */
.tech-category {
    margin-bottom: 3rem;
}
.tech-category-title {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
    margin-bottom: 1.5rem;
    padding-left: 1rem;
    border-left: 3px solid var(--color-primary);
}
.tech-logo__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(var(--color-primary-rgb), 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-primary);
}

/* ============================================
   Section 通用
   ============================================ */
.section {
    padding: 6rem 0;
    position: relative;
}
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3.5rem;
}
.section-header h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: var(--font-extrabold);
    margin-bottom: 0.75rem;
}
.section-header p {
    color: var(--color-text-secondary);
    font-size: var(--text-lg);
}
.section-header .section-divider {
    display: block;
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
    margin: 1rem auto 0;
}

/* ============================================
   服务卡片
   ============================================ */
.services-section { padding: 6rem 0; }
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}
.service-card {
    position: relative;
    padding: 2rem;
    text-align: center;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}
.service-card:hover::before { opacity: 1; }

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px; height: 64px;
    border-radius: var(--radius-lg);
    background: rgba(var(--color-primary-rgb), 0.08);
    border: 1px solid rgba(var(--color-primary-rgb), 0.12);
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
    transition: all var(--transition-base);
}
.service-card:hover .service-icon {
    background: rgba(var(--color-primary-rgb), 0.15);
    transform: rotateY(180deg) scale(1.05);
    box-shadow: 0 0 20px rgba(var(--color-primary-rgb), 0.2);
}
.service-title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    margin-bottom: 0.65rem;
    color: var(--color-text-primary) !important;
}
.service-desc {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    margin-bottom: 1rem;
}
.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-primary);
    text-decoration: none;
    transition: gap var(--transition-fast);
}
.service-link:hover { gap: 0.6rem; }

/* ============================================
   项目展示
   ============================================ */
.projects-section { padding: 6rem 0; }

/* 筛选标签 */
.filter-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2.5rem;
}
.filter-tab {
    padding: 0.45rem 1.25rem;
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-muted);
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
}
.filter-tab:hover { color: var(--color-text-primary); border-color: var(--color-border-light); }
.filter-tab.active {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.08);
    box-shadow: 0 0 15px rgba(var(--color-primary-rgb), 0.1);
}

/* 项目网格 */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
}
.project-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    transition: all var(--transition-base);
}
.project-card:hover {
    transform: translateY(-6px);
    border-color: rgba(var(--color-primary-rgb), 0.2);
    box-shadow: var(--shadow-xl), 0 0 40px rgba(var(--color-primary-rgb), 0.08);
}
.project-thumbnail {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: var(--color-bg-tertiary);
}
.project-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}
.project-card:hover .project-thumbnail img { transform: scale(1.08); }

.project-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--hero-overlay);
    opacity: 0;
    transition: opacity var(--transition-base);
    padding: 1.5rem;
    text-align: center;
}
.project-card:hover .project-overlay { opacity: 1; }
.project-overlay h3 {
    font-size: var(--text-lg);
    margin-bottom: 0.5rem;
    color: var(--color-text-primary) !important;
}
.project-overlay p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}
.project-overlay .btn { font-size: var(--text-xs); }

/* 项目分类标签 */
.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--glass-border);
}
.project-tag {
    padding: 0.2rem 0.6rem;
    font-size: 11px;
    font-weight: var(--font-medium);
    color: var(--color-accent);
    border: 1px solid rgba(var(--color-accent-rgb), 0.2);
    border-radius: var(--radius-full);
    background: rgba(var(--color-accent-rgb), 0.06);
}

/* ============================================
   数据统计
   ============================================ */
.stats-section {
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}
.stats-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(var(--color-primary-rgb), 0.03), rgba(var(--color-secondary-rgb), 0.03), transparent);
    pointer-events: none;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
.stat-item {
    text-align: center;
    padding: 2rem 1rem;
}
.stat-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px; height: 56px;
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    font-size: 1.5rem;
    background: rgba(var(--color-primary-rgb), 0.06);
    border: 1px solid rgba(var(--color-primary-rgb), 0.1);
    color: var(--color-primary);
}
.stat-number {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: var(--font-extrabold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
    display: inline;
}
.stat-suffix {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-label {
    margin-top: 0.5rem;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-weight: var(--font-medium);
}

/* ============================================
   技术栈
   ============================================ */
.techstack-section { padding: 6rem 0; }

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.25rem;
}
.tech-item {
    padding: 1.5rem;
    text-align: center;
}
.tech-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    margin-bottom: 0.75rem;
}
.tech-logo img {
    max-width: 48px;
    max-height: 48px;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all var(--transition-base);
}
.tech-item:hover .tech-logo img { filter: grayscale(0%); opacity: 1; }
.tech-name {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    margin-bottom: 0.75rem;
    color: var(--color-text-primary) !important;
}
.skill-bar {
    height: 4px;
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: 2px;
    overflow: hidden;
}
.skill-bar .skill-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    width: 0;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   团队成员
   ============================================ */
.team-section { padding: 6rem 0; }
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
}
.team-card {
    padding: 2.5rem 1.5rem;
    text-align: center;
    position: relative;
}
.team-avatar {
    position: relative;
    display: inline-block;
    margin-bottom: 1.25rem;
}
.team-avatar img,
.team-avatar .avatar-placeholder {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid transparent;
    background-image: var(--gradient-primary);
    padding: 3px;
}
.team-avatar .avatar-inner {
    display: block;
    width: 100%; height: 100%;
    border-radius: 50%;
    object-fit: cover;
    background: var(--color-bg-tertiary);
}
.avatar-placeholder .avatar-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--color-text-muted);
    background: var(--gradient-card);
}
.team-name {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    margin-bottom: 0.25rem;
    color: var(--color-text-primary) !important;
}
.team-role {
    font-size: var(--text-sm);
    color: var(--color-primary);
    font-weight: var(--font-medium);
    margin-bottom: 1rem;
}
.team-social {
    display: flex;
    justify-content: center;
    gap: 0.6rem;
    opacity: 0;
    transform: translateY(8px);
    transition: all var(--transition-base);
}
.team-card:hover .team-social {
    opacity: 1;
    transform: translateY(0);
}
.team-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--color-text-muted);
    font-size: 14px;
    text-decoration: none;
    transition: all var(--transition-fast);
}
.team-social a:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.08);
}

/* ============================================
   客户评价
   ============================================ */
.testimonials-section { padding: 6rem 0; overflow: hidden; }
.testimonial-slider {
    position: relative;
    overflow: hidden;
    padding: 1rem 0;
}
.testimonial-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.testimonial-item {
    flex: 0 0 100%;
    padding: 0 1rem;
    text-align: center;
}
.testimonial-stars {
    display: flex;
    justify-content: center;
    gap: 0.25rem;
    margin-bottom: 1.25rem;
    color: var(--color-warning);
    font-size: 1.125rem;
}
.testimonial-text {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: var(--color-text-secondary);
    font-style: italic;
    max-width: 700px;
    margin: 0 auto 1.5rem;
}
.testimonial-text::before { content: open-quote; }
.testimonial-text::after { content: close-quote; }
.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}
.testimonial-author img {
    width: 48px; height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-border-light);
}
.testimonial-author strong {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-text-primary);
}
.testimonial-author span {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

/* 轮播控制 */
.slider-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
}
.slider-prev,
.slider-next {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    background: transparent;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}
.slider-prev:hover,
.slider-next:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.06);
}
.slider-dots {
    display: flex;
    gap: 0.5rem;
}
.slider-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--glass-border);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    padding: 0;
}
.slider-dot.active {
    width: 24px;
    border-radius: 4px;
    background: var(--color-primary);
}

/* ============================================
   CTA 行动召唤
   ============================================ */
.cta-section {
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
    text-align: center;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.04) 0%, rgba(var(--color-secondary-rgb), 0.06) 50%, rgba(var(--color-accent-rgb), 0.04) 100%);
}
.cta-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
}
.cta-glow--left {
    width: 400px; height: 400px;
    top: -10%; left: -10%;
    background: radial-gradient(circle, rgba(var(--color-primary-rgb), 0.1), transparent 70%);
}
.cta-glow--right {
    width: 350px; height: 350px;
    bottom: -10%; right: -10%;
    background: radial-gradient(circle, rgba(var(--color-accent-rgb), 0.08), transparent 70%);
}
.cta-section .container {
    position: relative;
    z-index: 2;
}
.cta-section h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-extrabold);
    margin-bottom: 1rem;
    color: var(--color-text-primary) !important;
}
.cta-section p {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 500px;
    margin: 0 auto 2rem;
}
.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ============================================
   面包屑导航
   ============================================ */
.breadcrumbs {
    padding: 1rem 0;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}
.breadcrumbs ol { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.breadcrumbs a { color: var(--color-text-muted); text-decoration: none; transition: color var(--transition-fast); }
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs .separator { opacity: 0.4; }

/* ============================================
   页脚
   ============================================ */
.site-footer {
    padding: 4rem 0 0;
    border-top: 1px solid var(--glass-border);
    background: rgba(var(--color-primary-rgb), 0.02);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--glass-border);
}
.footer-brand p {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    margin-top: 1rem;
}
.footer-social {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.25rem;
}
.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px; height: 38px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
}
.footer-social a:hover {
    color: var(--color-primary);
    border-color: rgba(var(--color-primary-rgb), 0.3);
    background: rgba(var(--color-primary-rgb), 0.06);
    transform: translateY(-2px);
}

.footer-col h4 {
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-primary);
    margin-bottom: 1.25rem;
}
.footer-links {
    list-style: none;
}
.footer-links li + li { margin-top: 0.6rem; }
.footer-links a {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    text-decoration: none;
    transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--color-primary); }

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 0;
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}
.footer-bottom-links {
    display: flex;
    gap: 1.5rem;
}
.footer-bottom-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}
.footer-bottom-links a:hover { color: var(--color-primary); }

/* ============================================
   返回顶部
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px; height: 44px;
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    background: var(--color-bg-elevated);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-text-muted);
    font-size: var(--text-lg);
    cursor: pointer;
    z-index: var(--z-fixed);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.08);
}

/* ============================================
   加载动画
   ============================================ */
.loading-screen {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-primary);
    z-index: 9999;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}
.loading-spinner {
    width: 40px; height: 40px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-dots {
    display: flex;
    gap: 6px;
    margin-top: 1rem;
}
.loading-dots span {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
    animation: bounce-dots 1.4s ease-in-out infinite;
}
.loading-dots span:nth-child(2) { animation-delay: 0.16s; }
.loading-dots span:nth-child(3) { animation-delay: 0.32s; }
@keyframes bounce-dots {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
    40% { transform: scale(1); opacity: 1; }
}

/* ============================================
   404 错误页面
   ============================================ */
.error-404 {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    padding: 2rem;
    text-align: center;
}
.error-404-terminal {
    display: inline-block;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem 3rem;
    font-family: var(--font-mono);
    text-align: left;
    max-width: 480px;
    box-shadow: var(--shadow-xl);
}
.error-404-code {
    font-size: 4rem;
    font-weight: var(--font-extrabold);
    color: var(--color-error);
    line-height: 1;
    margin-bottom: 0.5rem;
}
.error-404-message {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    margin-bottom: 1.5rem;
}
.error-404-prompt {
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.error-404-cursor {
    display: inline-block;
    width: 8px; height: 18px;
    background: var(--color-primary);
    vertical-align: middle;
    animation: blink 1s step-end infinite;
}

/* ============================================
   文章内容区
   ============================================ */
.entry-content { padding: 3rem 0; }
.entry-content h2 { margin-top: 2.5rem; margin-bottom: 1rem; }
.entry-content h3 { margin-top: 2rem; margin-bottom: 0.75rem; }
.entry-content p { margin-bottom: 1.25rem; color: var(--color-text-secondary); }
.entry-content ul,
.entry-content ol {
    padding-left: 1.5rem;
    margin-bottom: 1.25rem;
}
.entry-content ul { list-style: disc; }
.entry-content ol { list-style: decimal; }
.entry-content li {
    color: var(--color-text-secondary);
    margin-bottom: 0.4rem;
}
.entry-content pre {
    background: rgba(var(--color-primary-rgb), 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    overflow-x: auto;
    margin-bottom: 1.5rem;
}
.entry-content code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    padding: 0.15em 0.4em;
    background: rgba(var(--color-primary-rgb), 0.08);
    border-radius: 3px;
    color: var(--color-primary);
}
.entry-content pre code {
    padding: 0;
    background: none;
}
.entry-content blockquote {
    border-left: 3px solid var(--color-primary);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    background: rgba(var(--color-primary-rgb), 0.03);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--color-text-secondary);
    font-style: italic;
}
.entry-content img {
    border-radius: var(--radius-md);
    margin: 1.5rem 0;
}
.entry-content hr {
    border: none;
    height: 1px;
    background: var(--glass-border);
    margin: 2.5rem 0;
}

/* 文章元信息 */
.entry-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 1.5rem;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}
.entry-meta a { color: var(--color-text-muted); text-decoration: none; }
.entry-meta a:hover { color: var(--color-primary); }

/* 作者卡 */
.author-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.5rem;
    margin-top: 2rem;
}
.author-avatar {
    width: 64px; height: 64px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-border-light);
}
.author-info h4 { font-size: var(--text-base); margin-bottom: 0.25rem; color: var(--color-text-primary) !important; }
.author-info p { font-size: var(--text-sm); color: var(--color-text-muted); margin: 0; }

/* 前后文章导航 */
.post-navigation {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 2rem 0;
    border-top: 1px solid var(--glass-border);
    margin-top: 2rem;
}
.post-nav-link {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    max-width: 45%;
    text-decoration: none;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}
.post-nav-link:hover { color: var(--color-primary); }
.post-nav-label { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-text-muted); }
.post-nav-title { font-size: var(--text-sm); font-weight: var(--font-semibold); }

/* ============================================
   分页
   ============================================ */
.pagination-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 3rem;
}
.pagination-wrapper .page-numbers {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}
.pagination-wrapper .page-numbers a,
.pagination-wrapper .page-numbers .current {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px; height: 38px;
    padding: 0 0.5rem;
    font-size: var(--text-sm);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}
.pagination-wrapper .page-numbers a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.06);
}
.pagination-wrapper .page-numbers .current {
    background: var(--gradient-primary);
    color: var(--color-text-inverse);
    border-color: transparent;
    font-weight: var(--font-semibold);
}

/* ============================================
   搜索表单
   ============================================ */
.search-form {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.search-form label {
    flex-grow: 1;
}
.search-form input[type="search"] {
    width: 100%;
    padding: 0.75rem 1.25rem;
    font-family: var(--font-primary);
    font-size: var(--text-base);
    color: var(--color-text-primary);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--transition-fast);
}
.search-form input[type="search"]:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 15px rgba(var(--color-primary-rgb), 0.1);
}
.search-form button[type="submit"] {
    padding: 0.75rem 1.5rem;
    background: rgba(var(--color-primary-rgb), 0.1);
    border: 1px solid rgba(var(--color-primary-rgb), 0.3);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    font-weight: var(--font-semibold);
    cursor: pointer;
    transition: all var(--transition-fast);
}
.search-form button[type="submit"]:hover {
    background: rgba(var(--color-primary-rgb), 0.2);
    box-shadow: 0 0 20px rgba(var(--color-primary-rgb), 0.15);
}

/* ============================================
   辅助类
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-text-secondary) !important; }
.text-muted { color: var(--color-text-muted) !important; }

.mt-1 { margin-top: var(--space-4); }
.mt-2 { margin-top: var(--space-8); }
.mb-1 { margin-bottom: var(--space-4); }
.mb-2 { margin-bottom: var(--space-8); }

.hidden { display: none !important; }
.visible { display: block !important; }