/* ========================================
   河南荣硕信息科技有限公司 - 官网完整样式
   高端科技风格 - 统一样式文件
   ======================================== */

/* ========== 核心色彩系统 ========== */
:root {
    /* 主品牌色 - 深邃科技蓝 */
    --brand-50: #f0f7ff;
    --brand-100: #e0effe;
    --brand-200: #bae0fd;
    --brand-300: #7cc8fb;
    --brand-400: #36aaf5;
    --brand-500: #0c8ee8;
    --brand-600: #0071ce;
    --brand-700: #0159a7;
    --brand-800: #064b88;
    --brand-900: #0a4070;
    --brand-950: #06274a;
    
    /* 霓虹蓝 - 高光强调色 */
    --neon-blue: #00d4ff;
    --neon-cyan: #06f8f8;
    --neon-purple: #8b5cf6;
    
    /* 深色背景系统 */
    --bg-deep: #030712;
    --bg-primary: #0a0f1e;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.7);
    --bg-glass: rgba(255, 255, 255, 0.03);
    
    /* 文本色彩系统 */
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-tertiary: #6b7280;
    --text-muted: #4b5563;
    
    /* 边框与分隔线 */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-default: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.15);
    
    /* 渐变系统 */
    --gradient-brand: linear-gradient(135deg, #0071ce 0%, #00d4ff 100%);
    --gradient-neon: linear-gradient(135deg, #00d4ff 0%, #8b5cf6 50%, #ec4899 100%);
    --gradient-hero: linear-gradient(180deg, #030712 0%, #0a0f1e 50%, #111827 100%);
    
    /* 光效 */
    --glow-blue: 0 0 40px rgba(0, 212, 255, 0.15);
    --glow-purple: 0 0 40px rgba(139, 92, 246, 0.15);
    --glow-brand: 0 0 60px rgba(0, 113, 206, 0.2);
    
    /* 阴影系统 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.1);
    
    /* 圆角系统 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
}

/* ========== 基础重置 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-deep);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }

/* ========== 导航栏 ========== */
.navbar {
    background: rgba(3, 7, 18, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-subtle);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    background: rgba(3, 7, 18, 0.95);
    box-shadow: var(--shadow-lg);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
}

.logo h1 {
    color: var(--text-primary);
    font-size: 1.6rem;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo-icon {
    color: var(--neon-blue);
    font-size: 1.4rem;
    filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.5));
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 36px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.2s ease;
    padding: 8px 0;
    position: relative;
    font-size: 0.925rem;
    letter-spacing: 0.01em;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-brand);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--neon-blue);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: 0.3s;
    border-radius: 2px;
}

/* ========== 粒子背景 ========== */
#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: var(--bg-deep);
    overflow: hidden;
}

.particles-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-tech-items {
    position: relative;
    width: 100%;
    height: 100%;
}

.tech-item {
    position: absolute;
    font-size: 2rem;
    opacity: 0.08;
    animation: float-particle 20s infinite ease-in-out;
    filter: drop-shadow(0 0 15px rgba(0, 212, 255, 0.3));
}

.tech-item::before {
    content: attr(data-icon);
    color: var(--neon-blue);
}

.tech-item:nth-child(1) { top: 15%; left: 10%; animation-delay: 0s; }
.tech-item:nth-child(2) { top: 25%; right: 15%; animation-delay: 3s; }
.tech-item:nth-child(3) { bottom: 30%; left: 20%; animation-delay: 6s; }
.tech-item:nth-child(4) { top: 60%; right: 25%; animation-delay: 9s; }
.tech-item:nth-child(5) { bottom: 15%; left: 50%; animation-delay: 12s; }
.tech-item:nth-child(6) { top: 40%; left: 5%; animation-delay: 15s; }

@keyframes float-particle {
    0%, 100% { transform: translate(0, 0) rotate(0deg); opacity: 0.08; }
    25% { transform: translate(30px, -30px) rotate(90deg); opacity: 0.12; }
    50% { transform: translate(-20px, -50px) rotate(180deg); opacity: 0.15; }
    75% { transform: translate(-40px, -20px) rotate(270deg); opacity: 0.1; }
}

/* ========== 英雄区域 ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 100px;
    position: relative;
    overflow: hidden;
    background: transparent;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(139, 92, 246, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--neon-blue);
    margin-bottom: 28px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--neon-blue);
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.8);
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 28px;
    color: var(--text-primary);
    font-weight: 800;
    letter-spacing: -0.03em;
}

.gradient-text {
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 30px rgba(0, 212, 255, 0.2));
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 520px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 56px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    background: var(--gradient-brand);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(0, 113, 206, 0.3);
    letter-spacing: 0.01em;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 113, 206, 0.4), var(--glow-blue);
}

.btn-glow {
    box-shadow: 0 4px 25px rgba(0, 212, 255, 0.25), 0 0 40px rgba(0, 212, 255, 0.1);
}

.btn-glow:hover {
    box-shadow: 0 8px 35px rgba(0, 212, 255, 0.35), 0 0 60px rgba(0, 212, 255, 0.15);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    background: transparent;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-strong);
    transition: all 0.2s ease;
    font-weight: 600;
    font-size: 0.95rem;
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    border-color: var(--neon-blue);
    color: var(--neon-blue);
    background: rgba(0, 212, 255, 0.05);
    box-shadow: var(--glow-blue);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    background: transparent;
    color: var(--neon-blue);
    text-decoration: none;
    border-radius: var(--radius-md);
    border: 1.5px solid var(--neon-blue);
    transition: all 0.2s ease;
    font-weight: 600;
    font-size: 0.95rem;
}

.btn-outline:hover {
    background: var(--neon-blue);
    color: var(--bg-deep);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
}

.btn-full {
    width: 100%;
}

.hero-stats {
    display: flex;
    gap: 56px;
}

.hero-stat {
    text-align: left;
}

.stat-number {
    font-size: 2.75rem;
    font-weight: 800;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 6px;
}

.hero-visual {
    position: relative;
    height: 450px;
}

.floating-card {
    position: absolute;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    padding: 24px 28px;
    text-align: center;
    animation: float 6s ease-in-out infinite;
    box-shadow: var(--shadow-lg);
}

.card-1 { top: 10%; left: 5%; animation-delay: 0s; }
.card-2 { top: 40%; right: 5%; animation-delay: 2s; }
.card-3 { bottom: 8%; left: 20%; animation-delay: 4s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-18px); }
}

.card-icon { font-size: 2.25rem; margin-bottom: 10px; }
.card-text { color: var(--text-primary); font-weight: 600; font-size: 0.9rem; }

/* ========== 通用区块标题 ========== */
.section-header {
    text-align: center;
    margin-bottom: 72px;
}

.section-tag {
    display: inline-block;
    padding: 8px 18px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-full);
    color: var(--neon-blue);
    font-size: 0.85rem;
    margin-bottom: 20px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.section-title {
    font-size: 2.75rem;
    margin-bottom: 18px;
    color: var(--text-primary);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ========== 服务区域 ========== */
.services-modern {
    padding: 120px 0;
    background: var(--bg-primary);
    position: relative;
}

.services-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-default), transparent);
}

.services-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.service-card-modern {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 40px 32px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.06) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.service-card-modern:hover .service-glow {
    opacity: 1;
}

.service-card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-brand);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-card-modern:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-xl), var(--glow-blue);
}

.service-card-modern:hover::before {
    opacity: 1;
}

/* 服务卡片徽章 - 共用基础样式 */
.service-badge {
    position: absolute;
    top: 24px;
    right: 24px;
    padding: 5px 14px;
    border-radius: var(--radius-full);
    font-size: 0.725rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.service-badge--featured {
    background: linear-gradient(135deg, #ec4899, #f59e0b);
    color: white;
}

.service-badge--new {
    background: var(--neon-blue);
    color: var(--bg-deep);
}

.service-icon-wrapper {
    position: relative;
    margin-bottom: 28px;
    width: 68px;
    height: 68px;
}

.service-icon-bg {
    width: 68px;
    height: 68px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-lg);
}

.service-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.85rem;
}

.service-card-modern h3 {
    font-size: 1.4rem;
    margin-bottom: 14px;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.service-card-modern p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
    font-size: 0.95rem;
}

.service-features-mini {
    list-style: none;
    margin-bottom: 28px;
}

.service-features-mini li {
    padding: 7px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 22px;
    font-size: 0.875rem;
}

.service-features-mini li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--neon-blue);
    font-weight: bold;
    font-size: 0.8rem;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--neon-blue);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

.service-link:hover { gap: 12px; }
.service-link .arrow { transition: transform 0.2s ease; }
.service-link:hover .arrow { transform: translateX(3px); }

/* ========== 优势区域 ========== */
.why-us {
    padding: 120px 0;
    background: var(--bg-deep);
    position: relative;
}

.why-us::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-default), transparent);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.advantage-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 36px 28px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.advantage-card:hover {
    border-color: rgba(0, 212, 255, 0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--glow-blue);
}

.advantage-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.15;
    margin-bottom: 18px;
    line-height: 1;
    letter-spacing: -0.03em;
}

.advantage-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 700;
}

.advantage-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ========== 新闻区域 ========== */
.latest-news-modern {
    padding: 120px 0;
    background: var(--bg-primary);
    position: relative;
}

.latest-news-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-default), transparent);
}

.news-featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.news-featured-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.news-featured-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-xl), var(--glow-blue);
}

.news-image-wrapper {
    height: 200px;
    background: var(--gradient-neon);
    position: relative;
    overflow: hidden;
}

.news-image-wrapper::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to top, rgba(3, 7, 18, 0.8), transparent);
}

.news-category-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 14px;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.775rem;
    color: white;
    font-weight: 500;
    z-index: 1;
}

.news-category-badge.tech {
    background: rgba(6, 248, 248, 0.3);
    border-color: rgba(6, 248, 248, 0.4);
}

.news-category-badge.data {
    background: rgba(245, 158, 11, 0.3);
    border-color: rgba(245, 158, 11, 0.4);
}

.news-content-wrapper { padding: 28px; }

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.news-featured-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    line-height: 1.5;
    font-weight: 700;
}

.news-featured-card p {
    color: var(--text-secondary);
    margin-bottom: 18px;
    font-size: 0.9rem;
    line-height: 1.7;
}

.read-more-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--neon-blue);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

.read-more-link:hover { gap: 12px; }

/* ========== 联系区域 ========== */
.contact-modern {
    padding: 120px 0;
    background: var(--bg-deep);
    position: relative;
}

.contact-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-default), transparent);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info-section h2 {
    font-size: 2.5rem;
    margin: 24px 0 18px;
    color: var(--text-primary);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.contact-info-section > p {
    color: var(--text-secondary);
    margin-bottom: 48px;
    font-size: 1.05rem;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-detail-item {
    display: flex;
    gap: 18px;
    align-items: flex-start;
}

.detail-icon {
    font-size: 1.5rem;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.detail-content h4 {
    color: var(--text-primary);
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.95rem;
}

.detail-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.contact-form-section {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 44px;
    box-shadow: var(--shadow-lg);
}

.form-group { margin-bottom: 20px; }

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.2s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--neon-blue);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.08), 0 0 20px rgba(0, 212, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-tertiary);
}

/* ========== 页脚 ========== */
.footer-modern {
    background: var(--bg-deep);
    border-top: 1px solid var(--border-subtle);
    padding: 72px 0 36px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 80px;
    margin-bottom: 56px;
}

.footer-brand h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.5rem;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 56px;
}

.footer-column h4 {
    color: var(--text-primary);
    margin-bottom: 24px;
    font-weight: 600;
    font-size: 0.95rem;
}

.footer-column ul { list-style: none; }
.footer-column ul li { margin-bottom: 12px; }

.footer-column ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
    font-size: 0.9rem;
}

.footer-column ul li a:hover { color: var(--neon-blue); }

.footer-bottom {
    padding-top: 36px;
    border-top: 1px solid var(--border-subtle);
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

/* ========== 页面英雄区（公共） ========== */
.page-hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
    padding: 160px 0 100px;
    position: relative;
    overflow: hidden;
    background: var(--gradient-hero);
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 30% 30%, rgba(0, 212, 255, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 70%, rgba(139, 92, 246, 0.04) 0%, transparent 50%);
    pointer-events: none;
}

.page-hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.page-hero h1 {
    font-size: 3.5rem;
    margin: 24px 0;
    color: var(--text-primary);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
}

.page-hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* 各页面英雄区标题渐变色 */
.seo-hero .page-hero-content h1 {
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 30px rgba(0, 212, 255, 0.2));
}

.geo-hero .page-hero-content h1 {
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 30px rgba(139, 92, 246, 0.2));
}

.news-hero .page-hero-content h1 {
    background: linear-gradient(135deg, #ec4899 0%, #f59e0b 50%, #00d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 30px rgba(236, 72, 153, 0.2));
}

.download-hero .page-hero-content h1,
.app-detail-hero .page-hero-content h1 {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========== CTA区域 ========== */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-deep) 100%);
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-default), transparent);
}

.cta-content { text-align: center; }

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 18px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.cta-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.7;
}

/* ========== SEO页面专属样式 ========== */
.seo-intro {
    padding: 100px 0;
    background: var(--bg-deep);
}

.intro-content h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
    text-align: center;
    color: var(--text-primary);
    font-weight: 800;
}

.intro-content > p {
    max-width: 800px;
    margin: 0 auto 60px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
}

.benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.benefit-item {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 36px 28px;
    text-align: center;
    transition: all 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-lg), var(--glow-blue);
}

.benefit-icon { font-size: 2.5rem; margin-bottom: 18px; }

.benefit-item h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 700;
}

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

.seo-services {
    padding: 100px 0;
    background: var(--bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 40px 32px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-xl), var(--glow-blue);
}

.service-icon { font-size: 2.5rem; margin-bottom: 20px; }

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 14px;
    color: var(--text-primary);
    font-weight: 700;
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
    font-size: 0.95rem;
}

.service-features {
    list-style: none;
    padding: 0;
}

.service-features li {
    padding: 7px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 24px;
    font-size: 0.875rem;
}

.service-features li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--neon-blue);
    font-weight: bold;
    font-size: 0.8rem;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.seo-process {
    padding: 100px 0;
    background: var(--bg-deep);
}

.process-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    padding-bottom: 40px;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
    position: absolute;
    left: 0;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--gradient-brand);
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 9px;
    top: 20px;
    bottom: -20px;
    width: 2px;
    background: linear-gradient(to bottom, var(--neon-blue), transparent);
}

.timeline-item:last-child::before { display: none; }

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 700;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.case-studies {
    padding: 100px 0;
    background: var(--bg-primary);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.case-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 36px 28px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-xl), var(--glow-blue);
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.case-header h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    font-weight: 700;
}

.case-tag {
    padding: 6px 14px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-full);
    color: var(--neon-blue);
    font-size: 0.8rem;
    font-weight: 500;
}

.case-stats {
    display: flex;
    gap: 32px;
    margin-bottom: 20px;
}

.stat .stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat .stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.case-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.faq-section {
    padding: 100px 0;
    background: var(--bg-deep);
}

.faq-list { max-width: 800px; margin: 0 auto; }

.faq-item {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    margin-bottom: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover { border-color: rgba(0, 212, 255, 0.2); }

.faq-question {
    padding: 24px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-question h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.faq-toggle {
    font-size: 1.5rem;
    color: var(--neon-blue);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle { transform: rotate(45deg); }

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer { max-height: 300px; }

.faq-answer p {
    padding: 0 28px 24px;
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

.contact-section {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-deep) 100%);
    text-align: center;
}

.contact-section h2 {
    font-size: 2.5rem;
    margin-bottom: 18px;
    color: var(--text-primary);
    font-weight: 800;
}

.contact-section p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
}

/* ========== GEO页面专属样式 ========== */
.what-is-geo {
    padding: 100px 0;
    background: var(--bg-deep);
}

.geo-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-text .section-tag {
    display: inline-block;
    padding: 8px 18px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-full);
    color: var(--neon-blue);
    font-size: 0.85rem;
    margin-bottom: 20px;
    font-weight: 500;
}

.intro-text h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
    color: var(--text-primary);
    font-weight: 800;
}

.intro-text p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 16px;
}

.comparison-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 40px 32px;
    position: relative;
}

.comparison-item { text-align: center; padding: 20px; }

.icon-box {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    font-size: 2rem;
}

.icon-box.old {
    background: rgba(107, 114, 128, 0.1);
    border: 1px solid rgba(107, 114, 128, 0.2);
}

.icon-box.new {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.comparison-item h4 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 700;
}

.comparison-item > p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.comparison-item ul { list-style: none; padding: 0; }

.comparison-item li {
    padding: 6px 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.vs-divider {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--neon-blue);
    margin: 20px 0;
}

.why-geo {
    padding: 100px 0;
    background: var(--bg-primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.stat-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 40px 28px;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-lg), var(--glow-blue);
}

.stat-icon { font-size: 2.5rem; margin-bottom: 20px; }

.stat-value {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline;
}

.stat-unit {
    font-size: 2rem;
    font-weight: 700;
    color: var(--neon-blue);
    display: inline;
}

.stat-card p {
    color: var(--text-secondary);
    margin-top: 12px;
    font-size: 0.9rem;
    line-height: 1.6;
}

.geo-services {
    padding: 100px 0;
    background: var(--bg-deep);
}

.services-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.service-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.service-detail-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 40px 32px;
    display: flex;
    gap: 24px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-detail-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-xl), var(--glow-blue);
}

.service-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.15;
    line-height: 1;
    flex-shrink: 0;
}

.service-info h3 {
    font-size: 1.4rem;
    margin-bottom: 14px;
    color: var(--text-primary);
    font-weight: 700;
}

.service-info p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
    font-size: 0.95rem;
}

.detail-list {
    list-style: none;
    padding: 0;
}

.detail-list li {
    padding: 7px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 24px;
    font-size: 0.875rem;
}

.detail-list li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--neon-blue);
    font-weight: bold;
    font-size: 0.8rem;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.geo-process {
    padding: 100px 0;
    background: var(--bg-primary);
}

.timeline-step {
    position: relative;
    padding-left: 80px;
    padding-bottom: 50px;
}

.timeline-step:last-child { padding-bottom: 0; }

.step-connector {
    position: absolute;
    left: 24px;
    top: 50px;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--neon-blue), transparent);
}

.timeline-step:last-child .step-connector { display: none; }

.step-icon {
    position: absolute;
    left: 0;
    top: 0;
    width: 50px;
    height: 50px;
    background: var(--gradient-brand);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.step-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 700;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.industries {
    padding: 100px 0;
    background: var(--bg-deep);
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.industry-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 36px 28px;
    text-align: center;
    transition: all 0.3s ease;
}

.industry-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-lg), var(--glow-blue);
}

.industry-icon { font-size: 2.5rem; margin-bottom: 18px; }

.industry-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 700;
}

.industry-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.geo-cases {
    padding: 100px 0;
    background: var(--bg-primary);
}

.cases-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.case-card-modern {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 36px 28px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card-modern:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-xl), var(--glow-blue);
}

.case-header-modern {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.case-header-modern h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    font-weight: 700;
}

.case-tag-modern {
    padding: 6px 14px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-full);
    color: var(--neon-blue);
    font-size: 0.8rem;
    font-weight: 500;
}

.case-metrics {
    display: flex;
    gap: 32px;
    margin-bottom: 20px;
}

.metric-item .metric-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-item .metric-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.case-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.geo-comparison {
    padding: 100px 0;
    background: var(--bg-deep);
}

.comparison-table-wrapper { overflow-x: auto; }

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.comparison-table thead { background: rgba(0, 212, 255, 0.08); }

.comparison-table th {
    padding: 20px 24px;
    text-align: left;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1rem;
}

.comparison-table td {
    padding: 18px 24px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-subtle);
    font-size: 0.95rem;
}

.comparison-table tbody tr:hover { background: rgba(0, 212, 255, 0.03); }

.geo-faq {
    padding: 100px 0;
    background: var(--bg-primary);
}

.faq-list-modern { max-width: 800px; margin: 0 auto; }

.faq-item-modern {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    margin-bottom: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item-modern:hover { border-color: rgba(0, 212, 255, 0.2); }

.faq-question-modern {
    padding: 24px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-question-modern h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.faq-toggle-modern {
    font-size: 1.5rem;
    color: var(--neon-blue);
    transition: transform 0.3s ease;
}

.faq-item-modern.active .faq-toggle-modern { transform: rotate(45deg); }

.faq-answer-modern {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item-modern.active .faq-answer-modern { max-height: 300px; }

.faq-answer-modern p {
    padding: 0 28px 24px;
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ========== 新闻页面专属样式 ========== */
.news-filter-section {
    padding: 40px 0;
    background: var(--bg-primary);
}

.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-box input {
    width: 100%;
    padding: 14px 50px 14px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.search-box input:focus {
    outline: none;
    border-color: var(--neon-blue);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.08);
}

.search-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--neon-blue);
    font-size: 1.2rem;
    cursor: pointer;
}

.category-filters {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--neon-blue);
    color: var(--neon-blue);
}

.featured-articles {
    padding: 80px 0;
    background: var(--bg-deep);
}

.featured-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

.featured-main {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.featured-main:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-xl), var(--glow-blue);
}

.featured-image {
    height: 300px;
    background: linear-gradient(135deg, #ec4899 0%, #f59e0b 50%, #00d4ff 100%);
    position: relative;
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 50%, rgba(3, 7, 18, 0.8));
}

.featured-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 8px 16px;
    background: linear-gradient(135deg, #ec4899, #f59e0b);
    border-radius: var(--radius-full);
    color: white;
    font-size: 0.8rem;
    font-weight: 700;
}

.featured-content { padding: 32px; }

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.category-tag {
    padding: 6px 14px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-full);
    color: var(--neon-blue);
    font-size: 0.8rem;
    font-weight: 500;
}

.category-tag.ai {
    background: rgba(139, 92, 246, 0.08);
    border-color: rgba(139, 92, 246, 0.2);
    color: #8b5cf6;
}

.category-tag.cloud {
    background: rgba(6, 248, 248, 0.08);
    border-color: rgba(6, 248, 248, 0.2);
    color: #06f8f8;
}

.category-tag.bigdata {
    background: rgba(245, 158, 11, 0.08);
    border-color: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
}

.category-tag.blockchain {
    background: rgba(236, 72, 153, 0.08);
    border-color: rgba(236, 72, 153, 0.2);
    color: #ec4899;
}

.category-tag.dev {
    background: rgba(16, 185, 129, 0.08);
    border-color: rgba(16, 185, 129, 0.2);
    color: #10b981;
}

.article-meta .date {
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

.featured-content h2 {
    font-size: 1.8rem;
    margin-bottom: 16px;
    line-height: 1.4;
}

.featured-content h2 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.featured-content h2 a:hover { color: var(--neon-blue); }

.featured-content > p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
    font-size: 0.95rem;
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.author-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.author-avatar {
    width: 36px;
    height: 36px;
    background: var(--gradient-brand);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

.author-info span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.article-stats {
    display: flex;
    gap: 16px;
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

.featured-side {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.featured-side-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all 0.3s ease;
}

.featured-side-card:hover {
    transform: translateX(-4px);
    border-color: rgba(0, 212, 255, 0.2);
}

.side-image {
    height: 120px;
    background: linear-gradient(135deg, #06f8f8 0%, #8b5cf6 100%);
}

.side-content { padding: 20px; }

.side-content h3 {
    font-size: 1.05rem;
    margin-bottom: 10px;
    line-height: 1.4;
}

.side-content h3 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.side-content h3 a:hover { color: var(--neon-blue); }

.side-content p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.6;
}

.latest-articles {
    padding: 80px 0;
    background: var(--bg-primary);
}

.articles-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.articles-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.article-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 24px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.article-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-xl), var(--glow-blue);
}

.article-image {
    height: 100%;
    min-height: 200px;
    background: linear-gradient(135deg, #ec4899 0%, #f59e0b 50%, #00d4ff 100%);
}

.article-body { padding: 28px 28px 28px 0; }

.article-body h3 {
    font-size: 1.3rem;
    margin-bottom: 14px;
    line-height: 1.4;
}

.article-body h3 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.article-body h3 a:hover { color: var(--neon-blue); }

.article-body > p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
    font-size: 0.9rem;
}

.pagination-modern {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 48px;
}

.page-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.page-btn:hover,
.page-btn.active {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--neon-blue);
    color: var(--neon-blue);
}

.articles-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-widget {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 28px;
}

.sidebar-widget h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    font-weight: 700;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    padding: 8px 16px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-full);
    color: var(--neon-blue);
    font-size: 0.85rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.tag:hover {
    background: var(--neon-blue);
    color: var(--bg-deep);
}

.popular-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.popular-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.popular-rank {
    width: 32px;
    height: 32px;
    background: var(--gradient-brand);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.popular-content h4 {
    font-size: 0.95rem;
    margin-bottom: 6px;
    line-height: 1.4;
}

.popular-content h4 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.popular-content h4 a:hover { color: var(--neon-blue); }

.popular-views {
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

.subscribe-widget p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.subscribe-widget input {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.subscribe-widget input:focus {
    outline: none;
    border-color: var(--neon-blue);
}

/* ========== 下载页面专属样式 ========== */
.download-filter {
    padding: 40px 0;
    background: var(--bg-primary);
}

.featured-apps {
    padding: 80px 0;
    background: var(--bg-deep);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.featured-app-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 32px;
    display: flex;
    gap: 20px;
    align-items: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.featured-app-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-xl), var(--glow-blue);
}

.app-icon-large {
    font-size: 3rem;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

.app-info-large { flex: 1; }

.app-info-large h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 700;
}

.app-desc {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 12px;
    line-height: 1.6;
}

.app-meta {
    display: flex;
    gap: 16px;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.btn-download {
    padding: 12px 24px;
    background: var(--gradient-brand);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 113, 206, 0.4);
}

.apps-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.app-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 28px;
    text-align: center;
    transition: all 0.3s ease;
}

.app-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-lg), var(--glow-blue);
}

.app-card-icon { font-size: 3rem; margin-bottom: 18px; }

.app-card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 700;
}

.app-card p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 16px;
    line-height: 1.6;
}

.app-card-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 18px;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.btn-download-small {
    width: 100%;
    padding: 10px;
    background: var(--gradient-brand);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-download-small:hover {
    box-shadow: 0 4px 20px rgba(0, 113, 206, 0.3);
}

/* ========== 软件详情页专属样式 ========== */
.app-detail-hero { min-height: 60vh; }

.app-detail-intro {
    padding: 80px 0;
    background: var(--bg-deep);
}

.app-detail-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 48px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 40px;
    align-items: center;
}

.app-icon-xl {
    font-size: 5rem;
    width: 140px;
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-2xl);
}

.app-main-info h1 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-weight: 800;
}

.app-main-info .app-tagline {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.app-rating {
    display: flex;
    align-items: center;
    gap: 12px;
}

.stars {
    color: #f59e0b;
    font-size: 1.2rem;
}

.rating-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.app-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn-download-large {
    padding: 16px 40px;
    background: var(--gradient-brand);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 25px rgba(0, 212, 255, 0.25);
}

.btn-download-large:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 35px rgba(0, 212, 255, 0.35);
}

.app-info-meta {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.app-details-content {
    padding: 80px 0;
    background: var(--bg-primary);
}

.details-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.app-description {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 40px;
}

.app-description h2 {
    font-size: 1.8rem;
    margin-bottom: 24px;
    color: var(--text-primary);
    font-weight: 700;
}

.app-description p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.features-section h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    font-weight: 700;
}

.features-list {
    list-style: none;
    padding: 0;
}

.features-list li {
    padding: 12px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 28px;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border-subtle);
}

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

.features-list li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--neon-blue);
    font-weight: bold;
    font-size: 1rem;
}

.app-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-info-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 28px;
}

.sidebar-info-card h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    font-weight: 700;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-default);
}

.info-list {
    list-style: none;
    padding: 0;
}

.info-list li {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.9rem;
}

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

.info-label { color: var(--text-tertiary); }
.info-value { color: var(--text-primary); font-weight: 500; }

.screenshots-section {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 28px;
}

.screenshots-section h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    font-weight: 700;
}

.screenshot-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.screenshot-item {
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #06f8f8 0%, #8b5cf6 100%);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s ease;
}

.screenshot-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* ========== 软件开发页面专属样式 ========== */
.service-intro-modern {
    padding: 100px 0;
    background: var(--bg-primary);
}

.intro-content-modern {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.intro-content-modern .section-tag {
    display: inline-block;
    padding: 8px 18px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-full);
    color: var(--neon-blue);
    font-size: 0.85rem;
    margin-bottom: 20px;
    font-weight: 500;
}

.intro-content-modern h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.intro-content-modern p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.service-details-modern {
    padding: 100px 0;
    background: var(--bg-deep);
}

.details-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.detail-card-modern {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 40px 32px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.detail-card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-brand);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.detail-card-modern:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-xl), var(--glow-blue);
}

.detail-card-modern:hover::before { opacity: 1; }

.detail-icon-wrapper {
    width: 68px;
    height: 68px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
}

.detail-icon { font-size: 1.85rem; }

.detail-card-modern h3 {
    font-size: 1.4rem;
    margin-bottom: 14px;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.detail-card-modern p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
    font-size: 0.95rem;
}

.feature-list-modern {
    list-style: none;
    padding: 0;
}

.feature-list-modern li {
    padding: 7px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 24px;
    font-size: 0.875rem;
}

.feature-list-modern li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--neon-blue);
    font-weight: bold;
    font-size: 0.8rem;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.development-process-modern {
    padding: 100px 0;
    background: var(--bg-primary);
}

.process-steps-modern {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.step-modern {
    flex: 1;
    min-width: 200px;
    text-align: center;
    padding: 36px 24px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.step-modern:hover {
    border-color: rgba(0, 212, 255, 0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--glow-blue);
}

.step-number-modern {
    font-size: 2.75rem;
    font-weight: 800;
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.2;
    margin-bottom: 18px;
    line-height: 1;
    letter-spacing: -0.03em;
}

.step-modern h3 {
    font-size: 1.15rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 700;
}

.step-modern p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.tech-stack-modern {
    padding: 100px 0;
    background: var(--bg-deep);
}

.tech-categories-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.tech-category-modern {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 32px 28px;
    transition: all 0.3s ease;
}

.tech-category-modern:hover { border-color: rgba(0, 212, 255, 0.15); }

.tech-category-modern h3 {
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-default);
    font-weight: 600;
}

.tech-items-modern {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tech-tag-modern {
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    color: var(--neon-blue);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    transition: all 0.2s ease;
    font-weight: 500;
}

.tech-tag-modern:hover {
    background: var(--neon-blue);
    color: var(--bg-deep);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

/* ========== 响应式设计 ========== */
@media (max-width: 992px) {
    .hero .container { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .hero-title { font-size: 3rem; }
    .contact-wrapper { grid-template-columns: 1fr; }
    .footer-content { grid-template-columns: 1fr; gap: 56px; }
    .geo-intro-grid { grid-template-columns: 1fr; }
    .featured-grid,
    .articles-layout { grid-template-columns: 1fr; }
    .article-card { grid-template-columns: 1fr; }
    .article-image { min-height: 180px; }
    .article-body { padding: 28px; }
    .app-detail-card { grid-template-columns: 1fr; text-align: center; }
    .app-icon-xl { margin: 0 auto; }
    .app-actions { flex-direction: row; justify-content: center; }
    .details-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(3, 7, 18, 0.98);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 28px 0;
        gap: 0;
        border-bottom: 1px solid var(--border-subtle);
    }

    .nav-menu.active { left: 0; }
    .nav-menu li { margin: 14px 0; }
    .menu-toggle { display: flex; }

    .menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .menu-toggle.active span:nth-child(2) { opacity: 0; }
    .menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -6px); }

    .hero-title { font-size: 2.5rem; }
    .hero-buttons { flex-direction: column; }
    .hero-stats { flex-wrap: wrap; gap: 36px; }
    .section-title { font-size: 2rem; }
    .services-grid-modern,
    .advantages-grid,
    .news-featured-grid,
    .benefits,
    .services-grid,
    .cases-grid,
    .stats-grid,
    .industry-grid,
    .cases-grid-modern,
    .featured-grid,
    .apps-grid { grid-template-columns: 1fr; }
    .footer-links { grid-template-columns: 1fr; gap: 40px; }
    .page-hero h1 { font-size: 2.5rem; }
    .service-row { grid-template-columns: 1fr; }
    .intro-content h2,
    .intro-content-modern h2 { font-size: 2rem; }
    .filter-bar { flex-direction: column; }
    .search-box { max-width: 100%; }
    .featured-side { flex-direction: row; overflow-x: auto; }
    .featured-side-card { min-width: 280px; }
    .featured-app-card { flex-direction: column; text-align: center; }
    .app-main-info h1 { font-size: 2rem; }
    .app-description { padding: 28px; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero-title { font-size: 2rem; }
    .stat-number { font-size: 2.25rem; }
    .section-title { font-size: 1.75rem; }
}

/* ========== 软件详情页完整样式 ========== */
.app-hero {
    padding: 160px 0 60px;
    background: var(--bg-deep);
    border-bottom: 1px solid var(--border-subtle);
}

.app-header {
    display: flex;
    gap: 32px;
    align-items: center;
}

.app-icon-xlarge {
    font-size: 6rem;
    width: 160px;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-2xl);
    flex-shrink: 0;
}

.app-header-info h1 {
    font-size: 2.5rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 800;
}

.app-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.app-meta-row {
    display: flex;
    gap: 16px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.app-version-badge,
.app-size-badge,
.app-downloads-badge {
    padding: 8px 16px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-full);
    color: var(--neon-blue);
    font-size: 0.85rem;
    font-weight: 500;
}

.app-actions {
    display: flex;
    gap: 16px;
}

.btn-favorite {
    padding: 16px 32px;
    background: transparent;
    border: 1.5px solid var(--border-strong);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-favorite:hover {
    border-color: #f59e0b;
    color: #f59e0b;
}

.btn-favorite.favorited {
    border-color: #f59e0b;
    color: #f59e0b;
}

.app-content-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.app-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.app-main { min-width: 0; }

.app-section {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 36px;
    margin-bottom: 24px;
}

.app-section h2 {
    font-size: 1.6rem;
    margin-bottom: 24px;
    color: var(--text-primary);
    font-weight: 700;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.screenshot-item {
    aspect-ratio: 16/10;
    background: linear-gradient(135deg, #06f8f8 0%, #8b5cf6 100%);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s ease;
}

.screenshot-item:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-lg);
}

.screenshot-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

.features-list {
    display: grid;
    gap: 20px;
}

.feature-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: all 0.2s ease;
}

.feature-item:hover {
    border-color: rgba(0, 212, 255, 0.2);
    background: rgba(0, 212, 255, 0.05);
}

.feature-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.feature-content h4 {
    font-size: 1.05rem;
    margin-bottom: 6px;
    color: var(--text-primary);
    font-weight: 600;
}

.feature-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.requirements-grid {
    display: grid;
    gap: 16px;
}

.requirement-card {
    padding: 20px;
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.requirement-card h4 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 600;
}

.requirement-card ul {
    list-style: none;
    padding: 0;
}

.requirement-card li {
    padding: 6px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    position: relative;
    padding-left: 20px;
}

.requirement-card li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--neon-blue);
}

.changelog {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.changelog-item {
    padding: 20px;
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.changelog-version {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--neon-blue);
    margin-bottom: 4px;
}

.changelog-date {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-bottom: 12px;
}

.changelog-item ul {
    list-style: none;
    padding: 0;
}

.changelog-item li {
    padding: 4px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    position: relative;
    padding-left: 16px;
}

.changelog-item li::before {
    content: '-';
    position: absolute;
    left: 0;
    color: var(--text-tertiary);
}

.app-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 28px;
}

.sidebar-card h3 {
    font-size: 1.15rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    font-weight: 700;
}

.download-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.9rem;
}

.info-label { color: var(--text-tertiary); }
.info-value { color: var(--text-primary); font-weight: 500; }

.btn-download-sidebar {
    width: 100%;
    padding: 14px;
    background: var(--gradient-brand);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-download-sidebar:hover {
    box-shadow: 0 8px 30px rgba(0, 113, 206, 0.4);
}

.related-info-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.related-info-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.9rem;
}

.related-label { color: var(--text-tertiary); }
.related-value { color: var(--text-primary); }

.related-link {
    color: var(--neon-blue);
    text-decoration: none;
}

.related-link:hover { text-decoration: underline; }

.recommend-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.recommend-item {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all 0.2s ease;
}

.recommend-item:hover {
    border-color: rgba(0, 212, 255, 0.2);
    background: rgba(0, 212, 255, 0.05);
}

.recommend-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.recommend-content { flex: 1; }

.recommend-content h4 {
    font-size: 0.95rem;
    margin-bottom: 4px;
    color: var(--text-primary);
    font-weight: 600;
}

.recommend-content p {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* ========== 文章详情页完整样式 ========== */
.article-page { padding-top: 70px; }

.article-header { margin-bottom: 0; }

.article-hero {
    padding: 80px 0 60px;
    background: var(--bg-deep);
    position: relative;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 30% 30%, rgba(0, 212, 255, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 70%, rgba(139, 92, 246, 0.04) 0%, transparent 50%);
    pointer-events: none;
}

.article-header-content { position: relative; z-index: 1; }

.article-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    font-size: 0.9rem;
}

.article-breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
}

.article-breadcrumb a:hover { color: var(--neon-blue); }

.article-breadcrumb span { color: var(--text-tertiary); }

.article-category-badge {
    display: inline-block;
    padding: 8px 18px;
    background: rgba(139, 92, 246, 0.08);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: var(--radius-full);
    color: #8b5cf6;
    font-size: 0.85rem;
    margin-bottom: 20px;
    font-weight: 500;
}

.article-category-badge.ai {
    background: rgba(139, 92, 246, 0.08);
    border-color: rgba(139, 92, 246, 0.2);
    color: #8b5cf6;
}

.article-header-content h1 {
    font-size: 2.8rem;
    margin-bottom: 28px;
    color: var(--text-primary);
    font-weight: 800;
    line-height: 1.3;
}

.article-meta-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.author-info-large {
    display: flex;
    align-items: center;
    gap: 14px;
}

.author-avatar-large {
    width: 50px;
    height: 50px;
    background: var(--gradient-brand);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
}

.author-details { display: flex; flex-direction: column; }

.author-name {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.author-title {
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

.article-stats-large {
    display: flex;
    gap: 24px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.stat-icon { font-size: 1.1rem; }

.article-body-wrapper {
    padding: 60px 0;
    background: var(--bg-primary);
}

.article-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.article-main { min-width: 0; }

.share-buttons-sticky {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: row;
    gap: 12px;
    margin-bottom: 24px;
}

.share-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 1.3rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.share-btn:hover {
    border-color: var(--neon-blue);
    color: var(--neon-blue);
    background: rgba(0, 212, 255, 0.05);
}

.article-content {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 40px;
}

.article-content .lead-text {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-default);
}

.article-content h2 {
    font-size: 1.8rem;
    margin: 48px 0 24px;
    color: var(--text-primary);
    font-weight: 700;
}

.article-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.info-box {
    display: flex;
    gap: 16px;
    padding: 24px;
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-lg);
    margin: 24px 0;
}

.info-box-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.info-box-content h4 {
    font-size: 1.05rem;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 600;
}

.info-box-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 32px 0;
    padding: 24px 0;
    border-top: 1px solid var(--border-default);
    border-bottom: 1px solid var(--border-default);
}

.tag-item {
    padding: 8px 16px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-full);
    color: var(--neon-blue);
    font-size: 0.85rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.tag-item:hover {
    background: var(--neon-blue);
    color: var(--bg-deep);
}

.article-share-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border-default);
}

.share-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.share-buttons-row {
    display: flex;
    gap: 12px;
}

/* 评论区 */
.comments-section {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 36px;
    margin-top: 24px;
}

.comments-section h3 {
    font-size: 1.4rem;
    margin-bottom: 28px;
    color: var(--text-primary);
    font-weight: 700;
}

.comment-form {
    margin-bottom: 32px;
}

.comment-form textarea {
    width: 100%;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    resize: vertical;
    min-height: 100px;
    margin-bottom: 12px;
}

.comment-form textarea:focus {
    outline: none;
    border-color: var(--neon-blue);
}

.comment-form button {
    padding: 12px 28px;
    background: var(--gradient-brand);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.comment-form button:hover {
    box-shadow: 0 4px 20px rgba(0, 113, 206, 0.3);
}

.comment-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.comment-item {
    padding: 20px;
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.comment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.comment-author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.comment-avatar {
    width: 36px;
    height: 36px;
    background: var(--gradient-neon);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.85rem;
}

.comment-author-name {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.comment-date {
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

.comment-text {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.comment-actions {
    display: flex;
    gap: 16px;
}

.comment-action-btn {
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: color 0.2s ease;
}

.comment-action-btn:hover { color: var(--neon-blue); }

/* 相关文章 */
.related-articles {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: 36px;
    margin-top: 24px;
}

.related-articles h3 {
    font-size: 1.4rem;
    margin-bottom: 24px;
    color: var(--text-primary);
    font-weight: 700;
}

.related-article-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.related-article-item {
    padding: 16px;
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all 0.2s ease;
}

.related-article-item:hover {
    border-color: rgba(0, 212, 255, 0.2);
    background: rgba(0, 212, 255, 0.05);
}

.related-article-item h4 {
    font-size: 1rem;
    margin-bottom: 6px;
    color: var(--text-primary);
    font-weight: 600;
}

.related-article-item p {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* 文章详情页 - 作者信息卡片 */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-widget {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 28px;
}

.sidebar-widget h3 {
    font-size: 1.15rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    font-weight: 700;
}

.author-widget {
    text-align: center;
}

.author-avatar-xlarge {
    width: 80px;
    height: 80px;
    background: var(--gradient-brand);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.8rem;
    margin: 0 auto 16px;
}

.author-widget h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 700;
}

.author-bio {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

/* 相关文章列表 */
.related-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.related-item {
    display: flex;
    gap: 14px;
    padding: 12px;
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all 0.2s ease;
}

.related-item:hover {
    border-color: rgba(0, 212, 255, 0.2);
    background: rgba(0, 212, 255, 0.05);
}

.related-image {
    width: 80px;
    height: 60px;
    background: linear-gradient(135deg, #06f8f8 0%, #8b5cf6 100%);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.related-content {
    flex: 1;
    min-width: 0;
}

.related-content h4 {
    font-size: 0.9rem;
    margin-bottom: 6px;
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-date {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* 引用块 */
.quote-block {
    margin: 24px 0;
    padding: 24px 28px;
    background: rgba(139, 92, 246, 0.05);
    border-left: 4px solid #8b5cf6;
    border-radius: var(--radius-md);
}

.quote-block blockquote {
    color: var(--text-secondary);
    font-style: italic;
    font-size: 1.05rem;
    line-height: 1.7;
    margin: 0 0 12px;
}

.quote-block cite {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    font-style: normal;
}

/* 挑战卡片网格 */
.challenge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin: 24px 0;
}

.challenge-card {
    padding: 24px;
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.2s ease;
}

.challenge-card:hover {
    border-color: rgba(0, 212, 255, 0.2);
    background: rgba(0, 212, 255, 0.05);
}

.challenge-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.challenge-card h4 {
    font-size: 1rem;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 600;
}

.challenge-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

/* 结论框 */
.conclusion-box {
    padding: 24px;
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.15);
    border-radius: var(--radius-lg);
    margin-top: 24px;
}

.conclusion-box h4 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: #10b981;
    font-weight: 600;
}

.conclusion-box p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin: 0;
}

/* 文章导航 */
.article-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 32px 0;
}

.nav-prev,
.nav-next {
    padding: 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all 0.2s ease;
}

.nav-prev:hover,
.nav-next:hover {
    border-color: rgba(0, 212, 255, 0.2);
    background: rgba(0, 212, 255, 0.05);
}

.nav-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-tertiary);
    margin-bottom: 6px;
}

.nav-title {
    display: block;
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.4;
}

/* 标签云 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-cloud .tag {
    padding: 8px 16px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-full);
    color: var(--neon-blue);
    font-size: 0.85rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.tag-cloud .tag:hover {
    background: var(--neon-blue);
    color: var(--bg-deep);
}

/* 评论头像和内容 */
.comment-item {
    display: flex;
    gap: 14px;
    padding: 20px;
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.comment-content {
    flex: 1;
    min-width: 0;
}

.comment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.comment-author {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.comment-date {
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

.comment-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin: 0 0 12px;
}

.comment-actions {
    display: flex;
    gap: 16px;
}

.comment-action-btn {
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: color 0.2s ease;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
}

.comment-action-btn:hover {
    color: var(--neon-blue);
    background: rgba(0, 212, 255, 0.05);
}

/* 响应式调整 */
@media (max-width: 992px) {
    .app-header { flex-direction: column; text-align: center; }
    .app-icon-xlarge { margin: 0 auto; }
    .app-actions { justify-content: center; }
    .app-layout,
    .article-layout { grid-template-columns: 1fr; }
    .share-buttons-sticky {
        position: static;
        flex-direction: row;
        justify-content: center;
    }
    .challenge-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .article-navigation {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .app-header-info h1 { font-size: 2rem; }
    .article-header-content h1 { font-size: 2rem; }
    .article-meta-info { flex-direction: column; align-items: flex-start; }
    .article-content { padding: 28px; }
    .app-section { padding: 28px; }
}