/* ============================================
   WG13 - 鏂版嫙鐗╂殫榛戦鏍兼ā鏉?   Neumorphism Dark Theme
   鐗堟湰: 2.0 (浼樺寲鐗?
   鏇存柊鏃ユ湡: 2024-12-26
   ============================================ */

/* ============================================
   CSS 鍙橀噺瀹氫箟
   ============================================ */
:root {
    /* 鑳屾櫙鑹茬郴 */
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-card: #1f2937;
    --bg-elevated: #252d3d;
    --bg-input: #131b2e;
    
    /* 寮鸿皟鑹?*/
    --accent-primary: #f97316;
    --accent-secondary: #8b5cf6;
    --accent-tertiary: #ec4899;
    --accent-success: #10b981;
    --accent-info: #06b6d4;
    
    /* 娓愬彉 */
    --gradient-primary: linear-gradient(135deg, #f97316 0%, #ec4899 100%);
    --gradient-secondary: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
    --gradient-dark: linear-gradient(180deg, #1a1a2e 0%, #0f0f23 100%);
    --gradient-card: linear-gradient(145deg, #232b3e 0%, #1a2234 100%);
    
    /* 鏂囧瓧鑹?*/
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-light: #ffffff;
    
    /* 杈规鑹?*/
    --border-color: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.12);
    
    /* 鏂版嫙鐗╅槾褰?*/
    --shadow-raised: 8px 8px 20px rgba(0, 0, 0, 0.4), 
                     -4px -4px 12px rgba(255, 255, 255, 0.03);
    --shadow-raised-lg: 12px 12px 30px rgba(0, 0, 0, 0.5), 
                        -6px -6px 20px rgba(255, 255, 255, 0.03);
    --shadow-inset: inset 4px 4px 10px rgba(0, 0, 0, 0.4), 
                    inset -4px -4px 10px rgba(255, 255, 255, 0.02);
    --shadow-glow: 0 0 30px rgba(249, 115, 22, 0.3);
    --shadow-glow-purple: 0 0 30px rgba(139, 92, 246, 0.3);
    
    /* 灏哄 */
    --container-width: 1200px;
    --header-height: 70px;
    --radius: 20px;
    --radius-sm: 12px;
    --radius-lg: 28px;
    --radius-xl: 36px;
    
    /* 杩囨浮 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   鍩虹鏍峰紡閲嶇疆
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    overflow-x: hidden;
    padding-top: var(--header-height);
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-tertiary);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ============================================
   甯冨眬瀹瑰櫒
   ============================================ */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.main {
    padding-top: 0;
}

/* ============================================
   宸ュ叿绫?   ============================================ */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.gradient-text-purple {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

/* ============================================
   Header 瀵艰埅鏍?   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 9999;
    transition: all var(--transition-normal);
}

.header.scrolled {
    background: rgba(22, 33, 62, 0.98);
    box-shadow: var(--shadow-raised);
}

.header-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo img {
    height: 42px;
    width: auto;
}

.logo-slogan,
.logo-text {
    display: none !important;
}

/* 瀵艰埅鑿滃崟 */
.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-list li a {
    display: block;
    padding: 12px 24px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 15px;
    border-radius: var(--radius);
    background: transparent;
    transition: all var(--transition-normal);
}

.nav-list li a:hover {
    color: var(--text-light);
    background: var(--bg-card);
    box-shadow: var(--shadow-raised);
}

/* Header 鍙充晶鎿嶄綔鍖?*/
.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
    position: relative;
    z-index: 10001;
}

.btn-contact {
    display: inline-flex;
    align-items: center;
    padding: 12px 28px;
    background: var(--gradient-primary);
    color: var(--text-light);
    font-weight: 600;
    border-radius: var(--radius);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-raised), var(--shadow-glow);
}

.btn-contact:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-raised-lg), 0 0 40px rgba(249, 115, 22, 0.4);
    color: var(--text-light);
}

/* 姹夊牎鑿滃崟鎸夐挳 */
.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: #16213e;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0;
    transition: all var(--transition-normal);
    position: relative;
    z-index: 10000;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.menu-toggle:hover {
    background: #1f2937;
    border-color: var(--border-light);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ============================================
   閫氱敤鎸夐挳
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    box-shadow: var(--shadow-raised), var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-raised-lg), 0 0 40px rgba(249, 115, 22, 0.5);
    color: var(--text-light);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-inset);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-raised);
}

.btn-secondary:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    box-shadow: var(--shadow-raised), 0 0 20px rgba(249, 115, 22, 0.2);
}

.btn-large {
    padding: 18px 40px;
    font-size: 18px;
}

/* ============================================
   Hero 棣栭〉鑻遍泟鍖?   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    background: var(--gradient-dark);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.15) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.12) 0%, transparent 70%);
    bottom: -150px;
    left: -150px;
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 100%;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    color: var(--accent-primary);
    margin-bottom: 24px;
    box-shadow: var(--shadow-raised);
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

/* ============================================
   Section 閫氱敤鍖哄潡
   ============================================ */
.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    color: var(--accent-primary);
    font-size: 14px;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-raised);
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.section-desc {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Features 鐗硅壊鍔熻兘
   ============================================ */
.features-section {
    background: var(--bg-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 36px 28px;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-raised);
    transition: all var(--transition-slow);
    cursor: pointer;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-raised-lg), var(--shadow-glow);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-input);
    border-radius: var(--radius);
    box-shadow: var(--shadow-inset);
    transition: all var(--transition-normal);
}

.feature-icon i {
    font-size: 36px;
    color: var(--accent-primary);
}

.feature-card:hover .feature-icon {
    background: var(--gradient-primary);
    box-shadow: var(--shadow-raised), var(--shadow-glow);
    transform: scale(1.1);
}

.feature-card:hover .feature-icon i {
    color: var(--text-light);
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   Stats 鏁版嵁缁熻
   ============================================ */
.stats-section {
    background: var(--bg-secondary);
    padding: 80px 0;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    justify-content: center;
    margin: 0 auto;
}

.stat-card,
.stat-item {
    text-align: center;
    padding: 32px 24px;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-raised);
    transition: all var(--transition-normal);
}

.stat-card:hover,
.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-raised-lg), var(--shadow-glow-purple);
}

.stat-value {
    font-size: 42px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 15px;
    color: var(--text-secondary);
}

/* ============================================
   News 鏂伴椈鏂囩珷
   ============================================ */
.news-section {
    background: var(--bg-primary);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.news-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-raised);
    transition: all var(--transition-normal);
}

.news-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-raised-lg), var(--shadow-glow);
}

.news-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.news-image img,
.news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.news-card:hover .news-image img,
.news-card:hover .news-thumb img {
    transform: scale(1.1);
}

.news-date {
    position: absolute;
    bottom: 12px;
    left: 12px;
    padding: 6px 14px;
    background: var(--bg-card);
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 50px;
    box-shadow: var(--shadow-raised);
}

.news-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--gradient-primary);
    color: var(--text-light);
    font-size: 12px;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 12px;
    align-self: flex-start;
}

.news-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.5;
}

.news-title a {
    color: var(--text-primary);
}

.news-title a:hover {
    color: var(--accent-primary);
}

.news-excerpt {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: auto;
}

/* ============================================
   Partners 鍚堜綔浼欎即
   ============================================ */
.partners-section {
    background: var(--bg-secondary);
    padding: 80px 0;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 32px;
    align-items: center;
}

.partner-item {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    padding: 20px;
    background: var(--bg-card);
    border: 2px solid rgba(249, 115, 22, 0.2);
    border-radius: 20px;
    transition: all var(--transition-normal);
    box-shadow: 5px 5px 15px rgba(0, 0, 0, 0.3), -5px -5px 15px rgba(255, 255, 255, 0.05);
}

.partner-item:hover {
    border-color: var(--accent-primary);
    box-shadow: 5px 5px 20px rgba(249, 115, 22, 0.4), -5px -5px 20px rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
}

.partner-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: brightness(1.2);
    opacity: 0.8;
    transition: all var(--transition-fast);
}

.partner-item:hover img {
    opacity: 1;
    filter: brightness(1.4);
}

/* ============================================
   CTA 鍙峰彫琛屽姩
   ============================================ */
.cta-section {
    position: relative;
    padding: 120px 0;
    background: var(--bg-secondary);
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.1) 0%, transparent 70%);
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    padding: 60px;
    background: var(--gradient-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-raised-lg);
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.cta-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.cta-buttons {
    margin-bottom: 24px;
}

/* ============================================
   Page Header 椤甸潰妯箙
   ============================================ */
.page-header {
    position: relative;
    padding: 85px 0 20px;
    background: var(--gradient-dark);
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.12) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    pointer-events: none;
}

.page-header .container {
    position: relative;
    z-index: 1;
}

.page-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.page-desc {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 700px;
    line-height: 1.7;
}

/* ============================================
   Article Detail 鏂囩珷璇︽儏
   ============================================ */
.detail-header {
    margin: 40px 0;
    padding: 40px;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow-raised);
}

.detail-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
    line-height: 1.3;
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    font-size: 14px;
    color: var(--text-secondary);
}

.detail-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.detail-meta a {
    color: var(--accent-primary);
}

.detail-content {
    padding: 40px;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    margin-bottom: 32px;
    box-shadow: var(--shadow-raised);
}

.article-body {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-primary);
}

.article-body img {
    max-width: 100% !important;
    height: auto !important;
    margin: 28px auto !important;
    display: block !important;
    border-radius: var(--radius-sm);
}

.article-body p img,
.detail-content p img {
    margin-left: auto !important;
    margin-right: auto !important;
}

.article-body p:has(img),
.detail-content p:has(img) {
    text-align: center;
}

/* Detail Navigation */
.detail-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 48px;
}

.detail-nav-item {
    padding: 24px;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-raised);
}

.detail-nav-item:not(.detail-nav-empty):hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-raised-lg), var(--shadow-glow);
}

.detail-nav-item.next {
    text-align: right;
}

.detail-nav-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.detail-nav-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.detail-nav-empty {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Detail Tags */
.detail-tags {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}

.detail-tags-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.neuro-tag {
    display: inline-block;
    padding: 8px 18px;
    background: var(--bg-input);
    color: var(--text-secondary);
    font-size: 13px;
    border-radius: 50px;
    box-shadow: var(--shadow-inset);
    transition: all var(--transition-fast);
}

.neuro-tag:hover {
    background: var(--gradient-primary);
    color: var(--text-light);
    box-shadow: var(--shadow-raised), var(--shadow-glow);
}

.neuro-quote {
    margin: 28px 0;
    padding: 24px 28px;
    background: var(--bg-input);
    border-left: 4px solid var(--accent-secondary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    color: var(--text-secondary);
    box-shadow: var(--shadow-inset);
}

/* Related Articles */
.related-section {
    margin-top: 48px;
}

.related-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--text-primary);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.related-card {
    display: flex;
    flex-direction: column;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-raised);
}

.related-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-raised-lg), var(--shadow-glow);
}

.related-card-image {
    aspect-ratio: 16/10;
    overflow: hidden;
}

.related-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.related-card:hover .related-card-image img {
    transform: scale(1.1);
}

.related-card-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.related-card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.5;
}

.related-card-title a {
    color: var(--text-primary);
}

.related-card-title a:hover {
    color: var(--accent-primary);
}

.related-card-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 8px;
}

/* ============================================
   Pagination 鍒嗛〉
   ============================================ */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 20px 0;
}

.page-item,
.page-num {
    min-width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    text-decoration: none;
    cursor: pointer;
    box-shadow: var(--shadow-raised);
}

a.page-item:hover,
.page-num:hover {
    background: #252d3d;
    border-color: var(--border-light);
    color: var(--text-primary);
}

.page-item.active,
.page-num.active {
    background: var(--gradient-primary) !important;
    border-color: transparent !important;
    color: var(--text-light) !important;
    box-shadow: 0 4px 12px rgba(249,115,22,0.3);
    cursor: default;
}

/* ============================================
   Footer 椤佃剼
   ============================================ */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 60px;
}

.footer-brand {
    max-width: 320px;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo img {
    height: 40px;
}

.footer-logo span {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-brand p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.footer-links h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.footer-links ul li {
    margin-bottom: 14px;
}

.footer-links ul li a,
.footer-links ul li span {
    font-size: 15px;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-links ul li a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ============================================
   Back to Top 杩斿洖椤堕儴
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--text-light);
    font-size: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-raised), var(--shadow-glow);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 9990;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-raised-lg), 0 0 40px rgba(249, 115, 22, 0.5);
}

.back-to-top:active {
    transform: translateY(0);
}

/* ============================================
   鍝嶅簲寮忚璁?- 骞虫澘绔?   ============================================ */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================
   鍝嶅簲寮忚璁?- 绉诲姩绔?   ============================================ */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .container {
        padding: 0 16px;
    }
    
    /* Header Mobile */
    .main-nav {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        box-shadow: 0 8px 30px rgba(0,0,0,0.5);
        z-index: 9998;
    }
    
    .main-nav.active {
        display: block;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 0;
    }
    
    .nav-list li {
        width: 100%;
    }
    
    .nav-list li a {
        display: block;
        padding: 16px 20px;
        text-align: center;
        border-radius: 0;
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    
    .nav-list li:last-child a {
        border-bottom: none;
    }
    
    .btn-contact {
        display: none;
    }
    
    .menu-toggle {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    /* Hero Mobile */
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    /* Sections Mobile */
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .features-section .container {
        display: flex;
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        max-width: 400px;
    }
    
    .stat-card,
    .stat-item {
        padding: 24px 16px;
    }
    
    .stat-value {
        font-size: 32px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .partner-item {
        height: 80px;
        padding: 16px;
    }
    
    /* CTA Mobile */
    .cta-content {
        padding: 40px 24px;
    }
    
    .cta-content h2 {
        font-size: 26px;
    }
    
    /* Page Header Mobile */
    .page-title {
        font-size: 28px;
    }
    
    /* Detail Mobile */
    .detail-header,
    .detail-content {
        padding: 24px;
    }
    
    .detail-title {
        font-size: 20px;
        line-height: 1.4;
    }
    
    .detail-meta {
        flex-direction: column;
        gap: 12px;
    }
    
    .detail-nav {
        grid-template-columns: 1fr;
    }
    
    .detail-nav-item.next {
        text-align: left;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
    
    /* Pagination Mobile */
    .pagination {
        gap: 6px;
        padding: 0 8px;
    }
    
    .page-item,
    .page-num {
        min-width: 38px;
        height: 38px;
        padding: 0 10px;
        font-size: 14px;
    }
    
    /* Footer Mobile */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    /* Back to Top Mobile */
    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
        font-size: 18px;
    }
}

/* ============================================
   鍝嶅簲寮忚璁?- 灏忓睆鎵嬫満
   ============================================ */
@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .page-title {
        font-size: 24px;
    }
    
    .cta-content h2 {
        font-size: 22px;
    }
    
    .detail-title {
        font-size: 22px;
    }
    
    .stat-value {
        font-size: 28px;
    }
}