/* Whitepaper specific styles */
.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.value-item {
    text-align: center;
    padding: 20px;
    background: var(--light-color);
    border-radius: 12px;
}

.value-item h4 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.formats-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.formats-table th,
.formats-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

.formats-table th {
    background: var(--primary-color);
    color: white;
}

.compression-levels {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.level-card {
    padding: 20px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: white;
}

.level-card h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.arch-layers {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

.arch-layer {
    padding: 20px;
    background: linear-gradient(135deg, var(--light-color), white);
    border-left: 4px solid var(--primary-color);
    border-radius: 8px;
}

.arch-layer h4 {
    color: var(--primary-color);
    margin-bottom: 8px;
}

.tech-stack {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 20px;
}

.stack-column h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.stack-column ul {
    list-style: none;
}

.stack-column li {
    padding: 5px 0;
    border-bottom: 1px solid #f3f4f6;
}

.algorithm-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 20px;
}

.step-card {
    padding: 20px;
    background: var(--light-color);
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.step-card h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.image-algorithm {
    margin-top: 20px;
    padding: 20px;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
}

.performance-metrics {
    margin-top: 20px;
}

.system-performance {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.perf-item {
    padding: 20px;
    background: var(--light-color);
    border-radius: 8px;
    text-align: center;
}

.perf-item h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.tech-innovations {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.innovation-item {
    padding: 20px;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
}

.innovation-item h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.2rem;
}

@media (max-width: 768px) {
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .compression-levels {
        grid-template-columns: 1fr;
    }
    
    .tech-stack {
        grid-template-columns: 1fr;
    }
    
    .tech-innovations {
        grid-template-columns: 1fr;
    }
}

/* Iconify - Modern icon library - using JavaScript version, no CSS import needed */

/* Custom SVG icon styles */
.icon {
    display: inline-block;
    width: 1.2em;
    height: 1.2em;
    vertical-align: middle;
    fill: currentColor;
}

/* Iconify icon fallbacks */
.iconify {
    font-size: inherit;
    vertical-align: middle;
}

/* Base icon styles */
[data-icon] {
    display: inline-block;
    width: 1em;
    height: 1em;
    vertical-align: middle;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

:root {
    --primary-color: #1a56db;
    --secondary-color: #0d2b5c;
    --accent-color: #00b4d8;
    --dark-color: #0f172a;
    --light-color: #f8fafc;
    --gray-color: #94a3b8;
    --success-color: #10b981;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    color: var(--dark-color);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--light-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 导航栏 */
.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    backdrop-filter: blur(5px);
    overflow: visible; /* 允许下拉菜单显示 */
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 40px;
    min-height: 40px;
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
    white-space: nowrap; /* 防止navbar-right内容换行 */
    flex-wrap: nowrap; /* 防止flex项目换行 */
    /* 确保高度固定，不被子元素撑开 */
    height: 40px; /* 固定高度 */
    overflow: visible; /* 允许子元素的下拉菜单显示 */
    position: relative;
    /* 确保不会被绝对定位的子元素撑开 */
    isolation: isolate; /* 创建新的层叠上下文 */
    /* 强制固定尺寸，防止任何子元素影响 */
    min-height: 40px;
    max-height: 40px;
    z-index: 1000;
    /* 确保始终位于右端 */
    margin-left: auto;
    flex-shrink: 0;
}

.logo {
    display: flex;
    align-items: center;
    white-space: nowrap; /* 防止Logo文字换行 */
    min-width: fit-content; /* 确保有足够空间 */
}

.logo-text {
    font-weight: 700;
    font-size: 1.6rem;
    color: var(--primary-color);
    letter-spacing: 0.5px;
    white-space: nowrap; /* 防止Logo文字换行 */
}

/* 西方语言logo字体调整 */
html[lang="en"] .logo-text,
html[lang="es"] .logo-text,
html[lang="de"] .logo-text,
html[lang="fr"] .logo-text,
html[lang="ru"] .logo-text {
    font-size: 1.4rem; /* 西方语言logo字体比中文小约10% */
}

/* Language-specific logo adjustments */
html[lang="ar"] .logo-text {
    font-size: 1.4rem; /* 阿拉伯文logo字体比中文小约10% */
    font-weight: 600;
}

/* 特性卡片 */
.feature-card {
    background-color: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 2rem;
    margin-bottom: 2rem;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

/* Icon improvements for better visibility */
.feature-icon i,
.tech-item i,
.circle-item i {
    font-size: 2rem;
    color: white;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* Better icon positioning */
.circle-item {
    position: absolute;
    width: 100px;
    height: 100px;
    background: rgba(26, 86, 219, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(59, 130, 246, 0.5);
    animation: float 6s infinite ease-in-out;
}

/* Enhanced visibility for icons */
.social-links a i {
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover i {
    transform: scale(1.1);
}

/* Better FontAwesome icon loading - Handled by Font Awesome CDN */

/* Icon size adjustments for different languages */
html[lang="ja"] .feature-icon i,
html[lang="ko"] .feature-icon i {
    font-size: 1.6rem;
}

html[lang="ar"] .feature-icon i,
html[lang="ru"] .feature-icon i {
    font-size: 2rem;
}

.logo-icon i {
    display: none;
}

/* Language Selector - Inline Button with Floating Dropdown */
.lang-selector {
    background: transparent;
    border-radius: 8px;
    box-shadow: none;
    border: none;
    min-width: 120px;
    max-width: 150px;
    position: relative;
    margin-right: 1rem;
    flex-shrink: 0; /* 防止收缩 */
    overflow: visible;
    contain: layout;
    display: inline-block;
    vertical-align: top;
    isolation: isolate; /* 创建新的层叠上下文 */
    height: 40px;
}

.lang-selector.navbar-lang {
    position: relative;
    top: auto;
    right: auto;
    margin-right: 1rem;
    z-index: 1000;
    flex-shrink: 0; /* 防止收缩 */
    height: 40px;
    background: transparent;
    border: none;
    box-shadow: none;
}

.lang-selector-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 15px;
    border: none;
    background: transparent;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
    width: 100%;
    border-radius: 8px;
    font-weight: 500;
}

.lang-flag {
    font-size: 18px;
    margin-right: 5px;
}

.lang-name {
    font-weight: 500;
}

.lang-selector-dropdown button .lang-flag {
    font-size: 18px;
    margin-right: 6px;
}

.lang-selector-toggle:hover {
    background: var(--primary-color);
    color: white;
}

.lang-selector-toggle .lang-current {
    display: flex;
    align-items: center;
    gap: 5px;
}

.lang-selector-toggle .lang-arrow {
    transition: transform 0.3s ease;
    font-size: 12px;
}

.lang-selector.expanded .lang-arrow {
    transform: rotate(180deg);
}

.lang-selector-dropdown {
    z-index: 99999;
    position: absolute;
    background: white;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(0, 0, 0, 0.1);
    min-width: 140px;
    max-width: 170px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    box-sizing: border-box;
    float: none;
    clear: both;
    margin: 0;
    padding: 0;
    top: 100%;
    left: 0;
    right: auto;
    isolation: isolate; /* 创建新的层叠上下文 */
    pointer-events: auto; /* 确保可以交互 */
    min-width: 140px;
    width: max-content;
}

/* Margin utilities */
.margin-top-md {
    margin-top: 1rem;
}

.margin-left-sm {
    margin-left: 1rem;
}

.btn-white {
    background: white;
    color: var(--primary-color);
}

.btn-white:hover {
    background: var(--light-bg);
    color: var(--primary-color);
}

/* Utility classes */
.hidden {
    display: none !important;
}

.opacity-50 {
    opacity: 0.5;
}

.lang-selector.expanded .lang-selector-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-selector-dropdown button {
    display: block;
    padding: 10px 15px;
    border: none;
    background: white;
    cursor: pointer;
    transition: var(--transition);
    font-size: 13px;
    width: 100%;
    text-align: left;
    white-space: nowrap;
}

.lang-selector-dropdown button:hover {
    background: var(--primary-color);
    color: white;
}

.lang-selector-dropdown button.active {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
}

.lang-selector-dropdown button:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: -2px;
}


html[lang="en"] body,
html[lang="es"] body,
html[lang="de"] body,
html[lang="fr"] body {
    font-family: 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    letter-spacing: 0.01em;
    font-size: 0.9rem; /* 西方语言字体比中文小10% */
}

html[lang="ja"] body {
    font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
    line-height: 1.8;
    letter-spacing: 0.02em;
}

html[lang="ko"] body {
    font-family: 'Noto Sans KR', 'Malgun Gothic', 'Apple SD Gothic Neo', sans-serif;
    line-height: 1.7;
    letter-spacing: -0.01em;
}

html[lang="ru"] body {
    font-family: 'Noto Sans', 'Arial', sans-serif;
    line-height: 1.6;
    letter-spacing: -0.005em;
    font-size: 0.9rem; /* 俄文字体比中文小10% */
}

html[lang="ar"] body {
    font-family: 'Noto Sans Arabic', 'Tahoma', sans-serif;
    direction: rtl;
    line-height: 1.8;
    letter-spacing: 0.01em;
    font-size: 0.9rem; /* 阿拉伯文字体比中文小10% */
}

/* Language-specific adjustments for selector */
html[lang="ar"] .lang-selector.navbar-lang {
    margin-right: 1rem;
    margin-left: 0;
}

html[lang="ar"] .navbar-right {
    flex-direction: row-reverse;
}

html[lang="ja"] .lang-selector-toggle,
html[lang="ko"] .lang-selector-toggle {
    font-size: 12px;
    padding: 8px 12px;
}

html[lang="ja"] .lang-selector-dropdown button,
html[lang="ko"] .lang-selector-dropdown button {
    font-size: 11px;
    padding: 8px 12px;
}

html[lang="ar"] .lang-selector-toggle {
    font-size: 13px;
    text-align: right;
}

html[lang="ar"] .lang-selector-dropdown button {
    font-size: 13px;
    text-align: right;
}



html[lang="ar"] .navbar .nav-links {
    margin-left: 0;
    margin-right: 2rem;
}

html[lang="ar"] .nav-links li {
    margin-left: 0;
    margin-right: 2rem;
}

/* Enhanced language-specific heading optimizations */
html[lang="ar"] h1,
html[lang="ar"] h2,
html[lang="ar"] h3,
html[lang="ar"] h4,
html[lang="ar"] h5,
html[lang="ar"] h6 {
    text-align: right;
    font-weight: 700;
    direction: rtl;
    font-size: 0.9em; /* 阿拉伯文标题比中文小10% */
}

html[lang="de"] h1,
html[lang="de"] h2,
html[lang="de"] h3,
html[lang="de"] h4,
html[lang="de"] h5,
html[lang="de"] h6 {
    font-weight: 600;
    font-size: 0.9em; /* 德文标题比中文小10% */
}

html[lang="fr"] h1,
html[lang="fr"] h2,
html[lang="fr"] h3,
html[lang="fr"] h4,
html[lang="fr"] h5,
html[lang="fr"] h6 {
    font-weight: 500;
    font-size: 0.9em; /* 法文标题比中文小10% */
}

html[lang="es"] h1,
html[lang="es"] h2,
html[lang="es"] h3,
html[lang="es"] h4,
html[lang="es"] h5,
html[lang="es"] h6 {
    font-size: 0.9em; /* 西班牙文标题比中文小10% */
}

html[lang="en"] h1,
html[lang="en"] h2,
html[lang="en"] h3,
html[lang="en"] h4,
html[lang="en"] h5,
html[lang="en"] h6 {
    font-size: 0.9em; /* 英文标题比中文小10% */
}

html[lang="ru"] h1,
html[lang="ru"] h2,
html[lang="ru"] h3,
html[lang="ru"] h4,
html[lang="ru"] h5,
html[lang="ru"] h6 {
    font-size: 0.9em; /* 俄文标题比中文小10% */
}

html[lang="ja"] h1,
html[lang="ja"] h2,
html[lang="ja"] h3,
html[lang="ja"] h4,
html[lang="ja"] h5,
html[lang="ja"] h6 {
    font-weight: 700;
    letter-spacing: 0.05em;
    line-height: 1.4;
}

html[lang="ko"] h1,
html[lang="ko"] h2,
html[lang="ko"] h3,
html[lang="ko"] h4,
html[lang="ko"] h5,
html[lang="ko"] h6 {
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

html[lang="ru"] h1,
html[lang="ru"] h2,
html[lang="ru"] h3,
html[lang="ru"] h4,
html[lang="ru"] h5,
html[lang="ru"] h6 {
    font-weight: 600;
}

/* Enhanced language-specific paragraph optimizations */
html[lang="ja"] p,
html[lang="ko"] p {
    line-height: 1.9;
    text-align: justify;
    word-break: break-word;
}

html[lang="ja"] p {
    letter-spacing: 0.02em;
}

html[lang="ko"] p {
    letter-spacing: -0.01em;
}

html[lang="ar"] p {
    text-align: right;
    line-height: 1.8;
    direction: rtl;
}

html[lang="de"] p {
    line-height: 1.6;
    text-align: left;
    font-size: 0.9rem; /* 德文段落比中文小10% */
}

html[lang="fr"] p {
    line-height: 1.7;
    font-size: 0.9rem; /* 法文段落比中文小10% */
}

html[lang="es"] p {
    line-height: 1.6;
    font-size: 0.9rem; /* 西班牙文段落比中文小10% */
}

html[lang="en"] p {
    line-height: 1.6;
    font-size: 0.9rem; /* 英文段落比中文小10% */
}

html[lang="ru"] p {
    line-height: 1.6;
    font-size: 0.9rem; /* 俄文段落比中文小10% */
}

/* Enhanced language-specific button text optimizations */
html[lang="ja"] .btn,
html[lang="ko"] .btn {
    font-weight: 600;
    padding: 0.35rem 2rem;
    font-size: 0.95rem;
}

html[lang="ja"] .btn {
    letter-spacing: 0.05em;
}

html[lang="ko"] .btn {
    letter-spacing: -0.01em;
}

html[lang="ar"] .btn {
    font-weight: 700;
    padding: 0.9rem 1.8rem;
    white-space: nowrap; /* 阿拉伯文按钮防止换行 */
    min-width: fit-content;
}

html[lang="de"] .btn {
    font-weight: 600;
    font-size: 0.9rem; /* 德文按钮比中文小10% */
    white-space: nowrap; /* 德文按钮防止换行 */
    min-width: fit-content;
}

html[lang="fr"] .btn {
    font-weight: 500;
    font-size: 0.9rem; /* 法文按钮比中文小10% */
    white-space: nowrap; /* 法文按钮防止换行 */
    min-width: fit-content;
}

html[lang="es"] .btn {
    font-size: 0.9rem; /* 西班牙文按钮比中文小10% */
    white-space: nowrap; /* 西班牙文按钮防止换行 */
    min-width: fit-content;
}

html[lang="en"] .btn {
    font-size: 0.9rem; /* 英文按钮比中文小10% */
    white-space: nowrap; /* 英文按钮防止换行 */
    min-width: fit-content;
}

html[lang="ru"] .btn {
    font-size: 0.9rem; /* 俄文按钮比中文小10% */
    white-space: nowrap; /* 俄文按钮防止换行 */
    min-width: fit-content;
}

/* Language-specific navigation optimizations */
html[lang="ar"] .nav-links {
    margin-left: 0;
    margin-right: 1.5rem; /* 阿拉伯文导航栏间距调整 */
}

html[lang="ar"] .nav-links li {
    margin-left: 0;
    margin-right: 1.5rem; /* 阿拉伯文导航栏项目间距调整 */
}

/* RTL compression animation for Arabic */
html[lang="ar"] .compression-arrow {
    animation: flow-motion-rtl 3s infinite ease-in-out;
}

html[lang="ar"] .navbar .container {
    direction: rtl;
}

/* Hero section language optimizations */
html[lang="ja"] .hero h1 {
    font-weight: 700;
    line-height: 1.4;
    font-size: 2.7rem;
}

html[lang="ko"] .hero h1 {
    font-weight: 800;
    line-height: 1.3;
    font-size: 2.7rem;
}

html[lang="de"] .hero h1 {
    font-weight: 600;
    font-size: 2.4rem; /* 德文hero标题比中文小约10% */
}

html[lang="fr"] .hero h1 {
    font-weight: 500;
    font-size: 2.4rem; /* 法文hero标题比中文小约10% */
}

html[lang="ru"] .hero h1 {
    font-weight: 600;
    font-size: 2.4rem; /* 俄文hero标题比中文小约10% */
}

html[lang="es"] .hero h1 {
    font-weight: 600;
    font-size: 2.4rem; /* 西班牙文hero标题比中文小约10% */
}

html[lang="en"] .hero h1 {
    font-weight: 700;
    font-size: 2.4rem; /* 英文hero标题比中文小约10% */
}

html[lang="ar"] .hero h1 {
    font-weight: 700;
    text-align: right;
    font-size: 2.4rem; /* 阿拉伯文hero标题比中文小约10% */
}

/* Language-specific card and feature optimizations */
html[lang="ja"] .feature-card h3,
html[lang="ja"] .tech-card h3 {
    font-size: 1.3rem;
    line-height: 1.5;
}

html[lang="ko"] .feature-card h3,
html[lang="ko"] .tech-card h3 {
    font-size: 1.3rem;
    line-height: 1.4;
}

html[lang="en"] .feature-card h3,
html[lang="en"] .tech-card h3 {
    font-size: 1.15rem; /* 英文特性卡片标题比中文小约10% */
}

html[lang="es"] .feature-card h3,
html[lang="es"] .tech-card h3 {
    font-size: 1.15rem; /* 西班牙文特性卡片标题比中文小约10% */
}

html[lang="de"] .feature-card h3,
html[lang="de"] .tech-card h3 {
    font-size: 1.15rem; /* 德文特性卡片标题比中文小约10% */
}

html[lang="fr"] .feature-card h3,
html[lang="fr"] .tech-card h3 {
    font-size: 1.15rem; /* 法文特性卡片标题比中文小约10% */
}

html[lang="ru"] .feature-card h3,
html[lang="ru"] .tech-card h3 {
    font-size: 1.15rem; /* 俄文特性卡片标题比中文小约10% */
}

html[lang="ar"] .feature-card,
html[lang="ar"] .tech-card,
html[lang="ar"] .testimonial-card {
    text-align: right;
}

html[lang="ar"] .feature-card h3,
html[lang="ar"] .tech-card h3,
html[lang="ar"] .testimonial-card h4 {
    text-align: right;
}

/* Statistics language optimizations */
html[lang="ja"] .stat-number,
html[lang="ko"] .stat-number {
    font-size: 1.6rem;
}

html[lang="ar"] .stat-item {
    text-align: right;
}

/* Language-specific footer optimizations */
html[lang="ar"] .footer-col ul li {
    text-align: right;
}

html[lang="ar"] .footer-grid {
    direction: rtl;
}

html[lang="ar"] .social-links {
    justify-content: flex-end;
}

/* Better typography for different scripts */
html[lang="zh"] .hero h1 {
    font-weight: 800;
}

html[lang="ja"] .hero h1 {
    font-weight: 700;
    line-height: 1.4;
}

html[lang="ko"] .hero h1 {
    font-weight: 800;
    line-height: 1.3;
}

/* Better font loading for all languages - Font imports handled by Google Fonts */

/* Support Grid Styles */
.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.support-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.support-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.support-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.support-card h3 {
    margin: 1rem 0;
    color: var(--secondary-color);
}

.support-card ul {
    text-align: left;
    margin-top: 1rem;
}

.support-card ul li {
    margin: 0.5rem 0;
    color: var(--gray-color);
}

/* Compliance Grid */
.compliance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.compliance-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.compliance-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.compliance-card i {
    font-size: 2.5rem;
    color: var(--success-color);
    margin-bottom: 1rem;
}

/* Security Features */
.security-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.security-item {
    display: flex;
    align-items: center;
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.security-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.security-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-right: 1rem;
    min-width: 40px;
}

/* Contact Info */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.contact-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.contact-item i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

/* Contact Methods */
.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.contact-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.contact-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.contact-card h3 i {
    font-size: 1.5rem;
    margin-bottom: 0;
    margin-right: 0.5rem;
}

.contact-card p {
    color: var(--gray-color);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.contact-card .font-size-sm {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(226, 232, 240, 0.6);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 1001;
    animation: slideUp 0.3s ease;
}

.modal-header {
    padding: 2rem 2rem 1rem 2rem;
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #f0f4f8 0%, #e6ebf5 100%);
    border-radius: 12px 12px 0 0;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.modal-close {
    background: white;
    border: 2px solid rgba(226, 232, 240, 0.6);
    font-size: 1.25rem;
    color: var(--gray-color);
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26, 86, 219, 0.1);
}

.modal-body {
    padding: 2rem;
}

/* Application Form Styles */
.application-form {
    max-width: 800px;
    margin: 0;
    background: transparent;
    padding: 0;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.form-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--dark-color);
    font-size: 0.95rem;
    font-family: 'Noto Sans SC', sans-serif;
}

.form-group input,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 2px solid rgba(226, 232, 240, 0.6);
    border-radius: 6px;
    font-size: 0.95rem;
    transition: var(--transition);
    background: var(--light-color);
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 5px 15px rgba(26, 86, 219, 0.1);
}

.form-group input:hover,
.form-group textarea:hover {
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
    line-height: 1.6;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.form-actions .btn {
    height: 48px;
    padding: 0.5rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 6px;
    min-width: 140px;
}

.form-message {
    margin-top: 1.5rem;
    padding: 1.25rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    animation: fadeIn 0.3s ease;
    border: 2px solid;
    background: white;
    font-family: 'Noto Sans SC', sans-serif;
}

.form-message.success {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.form-message.error {
    background: #ef4444;
    color: white;
    border-color: #ef4444;
}

.copy-btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    margin-left: 0.5rem;
    text-decoration: none;
    border: 2px solid white;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    font-family: 'Noto Sans SC', sans-serif;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: white;
    transform: translateY(-1px);
}

.form-message small {
    opacity: 0.95;
    font-size: 0.9em;
    display: block;
    margin-top: 0.75rem;
    font-family: 'Noto Sans SC', sans-serif;
}

/* Large Button Style */
.btn-large {
    padding: 0.75rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    min-height: 52px;
    background: white;
    color: var(--primary-color);
    border: 2px solid white;
    transition: var(--transition);
    border-radius: 6px;
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

.btn-large:hover {
    background: transparent;
    color: white;
    border-color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

.btn-large:active {
    transform: translateY(0);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive Modal Design */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 1rem;
        max-height: 95vh;
    }
    
    .modal-header {
        padding: 1rem 1.5rem;
    }
    
    .modal-header h3 {
        font-size: 1.1rem;
    }
    
    .modal-close {
        width: 28px;
        height: 28px;
        font-size: 1.2rem;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
}

/* Responsive Form Design */
@media (max-width: 768px) {
    .application-form {
        margin: 2rem 0 0;
        padding: 1.5rem;
        border-radius: 8px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .form-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }
    
    .form-actions .btn {
        width: 100%;
        padding: 1rem;
    }
    
    .form-message {
        font-size: 0.9rem;
        line-height: 1.4;
    }
    
    .copy-btn {
        display: block;
        width: 100%;
        margin-top: 0.75rem;
        margin-left: 0;
        padding: 0.5rem;
    }
    
    .btn-large {
        padding: 0.875rem 2rem;
        font-size: 1rem;
        min-height: 46px;
    }
}

@media (max-width: 480px) {
    .modal-content {
        width: 98%;
        margin: 0.5rem;
        border-radius: 8px;
    }
    
    .modal-header {
        padding: 0.875rem 1rem;
        border-radius: 8px 8px 0 0;
    }
    
    .modal-header h3 {
        font-size: 1rem;
    }
    
    .modal-close {
        width: 24px;
        height: 24px;
        font-size: 1rem;
    }
    
    .modal-body {
        padding: 1rem;
    }
    
    .application-form {
        margin: 0;
        padding: 0;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .form-group label {
        font-size: 0.875rem;
    }
    
    .form-actions .btn {
        padding: 0.875rem;
        font-size: 0.9rem;
    }
    
    .btn-large {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
        min-height: 42px;
        letter-spacing: 0.25px;
    }
}

/* Format Categories */
.formats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.format-category {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.format-category h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.format-category h3 i {
    color: var(--primary-color);
}

.format-category ul {
    list-style: none;
}

.format-category ul li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    color: var(--gray-color);
}

.format-category ul li:last-child {
    border-bottom: none;
}

/* Optimization Features */
.optimization-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.optimization-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
}

.optimization-item i {
    font-size: 2.5rem;
    color: var(--success-color);
    margin-bottom: 1rem;
}

/* Whitepaper Content */
.whitepaper-content {
    max-width: 800px;
    margin: 2rem auto;
}

.chapter {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.chapter h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.chapter ul {
    margin-top: 1rem;
}

.chapter ul li {
    margin: 0.5rem 0;
    color: var(--gray-color);
}

/* Benchmark Grid */
.benchmark-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.benchmark-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
}

.benchmark-item h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

/* Download Section */
.download-section {
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 3rem;
    border-radius: 12px;
    margin: 3rem 0;
}

.download-section h2 {
    margin-bottom: 1rem;
}

.download-section p {
    margin-bottom: 2rem;
    opacity: 0.9;
}

.download-section .btn {
    background: white;
    color: var(--primary-color);
    font-weight: 600;
}

.download-section .btn:hover {
    background: var(--light-color);
    transform: translateY(-2px);
}

/* Security Grid */
.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.security-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.security-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.security-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Crypto Features */
.crypto-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.crypto-item {
    display: flex;
    align-items: flex-start;
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.crypto-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.crypto-item i {
    font-size: 2rem;
    color: var(--success-color);
    margin-right: 1rem;
    min-width: 40px;
    margin-top: 0.5rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.stat-card h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--gray-color);
    font-weight: 500;
}

/* Tech Grid */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.tech-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.tech-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.tech-item h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

/* Code Example */
.code-example {
    background: #1a1a1a;
    color: #f0f0f0;
    padding: 2rem;
    border-radius: 12px;
    font-family: 'Courier New', monospace;
    margin: 2rem 0;
    overflow-x: auto;
}

.code-example pre {
    margin: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* Tech Item Icons */
.tech-item i {
    font-size: 1.2rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}



/* Optimized font loading with font-display: swap */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Arabic:wght@300;400;500;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Helvetica+Neue:wght@300;400;500;700&display=swap');

/* Additional font variants for better typography - Available if needed */
/* @import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;600;700&display=swap'); */
/* @import url('https://fonts.googleapis.com/css2?family=Source+Sans+Pro:wght@300;400;600;700&display=swap'); */

.logo-text {
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--primary-color);
}

/* 移动端导航汉堡菜单 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    margin-right: 1rem;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    margin: 5px 0;
    transition: var(--transition);
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

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

.nav-links {
    display: flex;
    list-style: none;
    margin-left: auto;
    gap: 0.2rem;
    transition: var(--transition);
}

.nav-links li {
    margin-left: 1rem;
}

/* 西方语言导航栏间距调整 */
html[lang="en"] .nav-links li,
html[lang="es"] .nav-links li,
html[lang="de"] .nav-links li,
html[lang="fr"] .nav-links li,
html[lang="ru"] .nav-links li {
    margin-left: 0.8rem; /* 西方语言导航栏间距适当减小 */
}

html[lang="ar"] .nav-links li {
    margin-left: 1.5rem; /* 阿拉伯文导航栏间距适当减小 */
    margin-right: 0;
}

/* 中日韩导航栏间距调整 */
html[lang="zh"] .nav-links,
html[lang="ja"] .nav-links,
html[lang="ko"] .nav-links {
    gap: 2rem;
    margin-right:2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
}

/* 西方语言导航栏字体调整 */
html[lang="en"] .nav-links a,
html[lang="es"] .nav-links a,
html[lang="de"] .nav-links a,
html[lang="fr"] .nav-links a,
html[lang="ru"] .nav-links a {
    font-size: 0.8rem; /* 西方语言导航栏字体比中文小20% */
    white-space: nowrap; /* 防止词语换行 */
    padding: 0.5rem 0.8rem; /* 增加内边距保持点击区域 */
}

html[lang="ar"] .nav-links a {
    font-size: 0.8rem; /* 阿拉伯文导航栏字体比中文小20% */
    white-space: nowrap; /* 防止词语换行 */
    padding: 0.5rem 0.8rem; /* 增加内边距保持点击区域 */
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-links a:hover:after {
    width: 100%;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: white;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    height: 40px;
    transition: var(--transition);
    border: 2px solid transparent;
    white-space: nowrap; /* 防止按钮文字换行 */
    min-width: fit-content; /* 确保有足够空间 */
    padding: 0 2rem;
}

.btn:hover {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26, 86, 219, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

/* Hero 区域 */
.hero {
    padding-top: 8rem;
    background: linear-gradient(135deg, #f0f4f8 0%, #e6ebf5 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%231a56db" fill-opacity="0.05" d="M0,128L48,133.3C96,139,192,149,288,154.7C384,160,480,160,576,165.3C672,171,768,181,864,181.3C960,181,1056,171,1152,165.3C1248,160,1344,160,1392,160L1440,160L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: bottom;
    opacity: 0.5;
}

.hero-content {
    display: flex;
    align-items: center;
    min-height: calc(100vh - 6rem);
}

.hero-text {
    flex: 1;
    padding-right: 3rem;
}

.hero-image {
    flex: 1;
    position: relative;
}

.hero h1 {
    font-size: 2.7rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.hero h1 span {
    color: var(--primary-color);
}

.hero p {
    font-size: 1.2rem;
    color: var(--gray-color);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 1rem;
}

.statistics {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-top: 2rem;
    display: flex;
    justify-content: space-around;
    position: relative;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-text {
    font-size: 0.9rem;
    color: var(--gray-color);
}

/* 西方语言统计区域字体调整 */
html[lang="en"] .stat-number,
html[lang="es"] .stat-number,
html[lang="de"] .stat-number,
html[lang="fr"] .stat-number,
html[lang="ru"] .stat-number {
    font-size: 1.35rem; /* 西方语言统计数字比中文小约10% */
}

html[lang="en"] .stat-text,
html[lang="es"] .stat-text,
html[lang="de"] .stat-text,
html[lang="fr"] .stat-text,
html[lang="ru"] .stat-text {
    font-size: 0.8rem; /* 西方语言统计文字比中文小约10% */
}

html[lang="ar"] .stat-number {
    font-size: 1.35rem; /* 阿拉伯文统计数字比中文小约10% */
}

html[lang="ar"] .stat-text {
    font-size: 0.8rem; /* 阿拉伯文统计文字比中文小约10% */
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border-radius: 12px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.image-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 40%, rgba(255,255,255,0.1) 50%, transparent 60%),
        url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><rect x="10" y="10" width="180" height="40" rx="5" fill="white" opacity="0.1"/><rect x="10" y="70" width="130" height="20" rx="3" fill="white" opacity="0.1"/><rect x="10" y="105" width="90" height="20" rx="3" fill="white" opacity="0.1"/><rect x="10" y="150" width="180" height="20" rx="3" fill="white" opacity="0.1"/><circle cx="170" cy="120" r="30" fill="white" opacity="0.1"/></svg>');
    background-size: cover;
    animation: shine 3s infinite linear;
}

@keyframes shine {
    0% { background-position: -200px 0; }
    100% { background-position: 200px 0; }
}

/* Compression Animation Styles */
.compression-animation {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #1a56db 0%, #0d2b5c 100%);
    border-radius: 12px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 2rem;
}

.compression-animation::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><path d="M10,10 L190,10 L190,190 L10,190 Z" stroke="%23ffffff" stroke-width="1" fill="none" opacity="0.1"/><circle cx="100" cy="100" r="60" stroke="%23ffffff" stroke-width="1" fill="none" opacity="0.05"/><path d="M50,100 L150,100 M100,50 L100,150" stroke="%23ffffff" stroke-width="0.5" opacity="0.1"/></svg>');
    opacity: 0.3;
}

.file-stack {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
}

.file-item {
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: var(--transition);
}

.file-original {
    animation: pulse-original 3s infinite ease-in-out;
}

.file-compressed {
    animation: pulse-compressed 3s infinite ease-in-out;
    transform: scale(0.8);
    background: rgba(16, 185, 129, 0.2);
    border-color: rgba(16, 185, 129, 0.4);
}

.file-item .iconify {
    color: white;
    margin-bottom: 0.5rem;
}

.size-indicator {
    width: 80px;
    height: 40px;
    position: relative;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.large-size {
    width: 80px;
    height: 40px;
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    border-radius: 6px;
    position: relative;
    animation: compress-animation 3s infinite ease-in-out;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.small-size {
    width: 20px;
    height: 40px;
    background: linear-gradient(135deg, #34d399, #10b981);
    border-radius: 6px;
    position: relative;
    animation: expand-animation 3s infinite ease-in-out;
    animation-delay: 1.5s;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.large-size::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    animation: pulse-border 3s infinite ease-in-out;
}

.small-size::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 8px;
    animation: pulse-border 3s infinite ease-in-out;
    animation-delay: 1.5s;
}

@keyframes compress-animation {
    0%, 35% { 
        width: 80px;
        transform: translateX(0);
        opacity: 1;
    }
    45% { 
        width: 40px;
        transform: translateX(-10px);
        opacity: 0.8;
    }
    50%, 100% { 
        width: 80px;
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes expand-animation {
    0%, 35% { 
        width: 20px;
        opacity: 0.5;
        transform: scale(0.9);
    }
    45% { 
        width: 30px;
        opacity: 1;
        transform: scale(1.1);
    }
    50%, 100% { 
        width: 20px;
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse-border {
    0%, 100% { 
        opacity: 0.3;
        transform: scale(1);
    }
    50% { 
        opacity: 0.6;
        transform: scale(1.05);
    }
}

.file-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
}

.compression-arrow {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: flow-motion 3s infinite ease-in-out;
}

.compression-arrow .iconify {
    color: white;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.compression-indicator {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: rotate 2s infinite linear;
}

.compression-indicator .iconify {
    color: white;
    font-size: 1.2rem;
}

@keyframes pulse-original {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
    }
    50% { 
        transform: scale(1.05);
        box-shadow: 0 0 30px rgba(255, 255, 255, 0.2);
    }
}

@keyframes pulse-compressed {
    0%, 100% { 
        transform: scale(0.8);
        box-shadow: 0 0 15px rgba(16, 185, 129, 0.3);
    }
    50% { 
        transform: scale(0.85);
        box-shadow: 0 0 25px rgba(16, 185, 129, 0.5);
    }
}

@keyframes flow-motion {
    0%, 100% { 
        transform: translateX(0);
    }
    50% { 
        transform: translateX(10px);
    }
}

/* RTL version of flow-motion for Arabic */
@keyframes flow-motion-rtl {
    0%, 100% { 
        transform: translateX(0);
    }
    50% { 
        transform: translateX(-10px);
    }
}

@keyframes rotate {
    0% { 
        transform: rotate(0deg);
    }
    100% { 
        transform: rotate(360deg);
    }
}

/* Responsive for compression animation */
@media (max-width: 768px) {
    .compression-animation {
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        height: auto;
        padding: 2rem 1rem;
    }
    
    .compression-arrow {
        transform: rotate(90deg);
    }
    
    /* RTL arrow rotation for mobile */
    html[lang="ar"] .compression-arrow {
        transform: rotate(-90deg);
    }
    
    .file-item {
        width: 100px;
        height: 100px;
    }
    
    .file-size {
        font-size: 1rem;
    }
    
    .file-label {
        font-size: 0.7rem;
    }
}

/* Page Header Styles */
.page-header {
    text-align: center;
    margin-top: 3rem;
    margin-bottom: 3rem;
    padding: 2rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 12px;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: white;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Language-specific page header adjustments */
html[lang="en"] .page-header h1,
html[lang="es"] .page-header h1,
html[lang="de"] .page-header h1,
html[lang="fr"] .page-header h1,
html[lang="ru"] .page-header h1 {
    font-size: 2.2rem;
}

html[lang="ar"] .page-header h1 {
    font-size: 2.2rem;
}

/* Content Section Styles */
.content-section {
    margin-bottom: 4rem;
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.content-section h2 {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

.content-section h3 {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin: 2rem 0 1rem 0;
}

.content-section h4 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Icon Styles for different pages */
.compliance-icon,
.deployment-icon,
.formats-icon,
.integration-icon,
.performance-icon,
.security-icon,
.support-icon,
.whitepaper-icon {
    text-align: center;
    margin-bottom: 2rem;
}

.compliance-icon i,
.deployment-icon i,
.formats-icon i,
.integration-icon i,
.performance-icon i,
.security-icon i,
.support-icon i,
.whitepaper-icon i {
    font-size: 4rem;
    color: var(--primary-color);
    background: rgba(26, 86, 219, 0.1);
    padding: 2rem;
    border-radius: 50%;
    display: inline-block;
}

/* Compliance Page Styles */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.cert-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
    text-align: center;
}

.cert-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.cert-icon {
    margin-bottom: 1rem;
}

.cert-icon i {
    font-size: 2.5rem;
    color: var(--primary-color);
    background: rgba(26, 86, 219, 0.1);
    padding: 1.5rem;
    border-radius: 50%;
    display: inline-block;
}

.cert-status {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin: 1rem 0;
}

.cert-active {
    background: var(--success-color);
    color: white;
}

.cert-pending {
    background: #f59e0b;
    color: white;
}

/* Deployment Page Styles */
.deployment-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.option-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
}

.option-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.option-card h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.option-card h4 i {
    color: var(--primary-color);
}

/* Formats Page Styles */
.legend {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
}

.excellent { background: var(--success-color); }
.good { background: #3b82f6; }
.fair { background: #f59e0b; }
.limited { background: #ef4444; }

.formats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.format-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
}

.format-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.format-card h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.compression-quality {
    margin: 1rem 0;
}

.quality-bar {
    height: 8px;
    background: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 0.5rem;
}

.quality-fill {
    height: 100%;
    background: var(--success-color);
    transition: width 0.3s ease;
}

/* Integration Page Styles */
.api-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.api-card {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    transition: var(--transition);
}

.api-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.api-card h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.endpoint {
    background: #1e293b;
    color: #10b981;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    margin: 0.5rem 0;
}

/* Performance Page Styles */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 1rem 0;
}

.stat-label {
    color: var(--gray-color);
    font-weight: 500;
}

.text-primary {
    color: var(--primary-color) !important;
}

/* Security Page Styles */
.features-list {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
}

.features-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: rgba(26, 86, 219, 0.05);
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.features-list li i {
    color: var(--success-color);
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.features-list li strong {
    color: var(--secondary-color);
    display: block;
    margin-bottom: 0.5rem;
}

/* Support Page Styles */
.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.support-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
    text-align: center;
}

.support-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.support-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.support-card h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.2rem;
}

.support-card h4 i {
    font-size: 1.5rem;
    margin-bottom: 0;
    margin-right: 0.5rem;
}

.support-card p {
    color: var(--gray-color);
    line-height: 1.6;
}

/* Support Hours */
.support-hours {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    margin: 2rem 0;
}

.support-hours h3 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.hours-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.hours-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: rgba(26, 86, 219, 0.05);
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.hours-item span {
    color: var(--dark-color);
    font-weight: 500;
}

.hours-item span:last-child {
    color: var(--primary-color);
    font-weight: 600;
}

/* SLA Table */
.sla-table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.sla-table thead {
    background: var(--primary-color);
    color: white;
}

.sla-table th,
.sla-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
}

.sla-table th:last-child,
.sla-table td:last-child {
    text-align: center;
}

.sla-table tbody tr:hover {
    background: rgba(26, 86, 219, 0.05);
}

.sla-table tbody tr:last-child td {
    border-bottom: none;
}

/* Language-specific sla-table adjustments */
html[lang="ar"] .sla-table th,
html[lang="ar"] .sla-table td {
    text-align: right;
}

html[lang="ar"] .sla-table th:last-child,
html[lang="ar"] .sla-table td:last-child {
    text-align: center;
}

/* Margin utilities */
.margin-top-1-5 {
    margin-top: 1.5rem;
}

.padding-left-2 {
    padding-left: 2rem;
}

.margin-top-sm {
    margin-top: 1rem;
}

.font-size-sm {
    font-size: 0.9rem;
}

.margin-left-1 {
    margin-left: 1rem;
}

/* Whitepaper Page Styles */
.main-content.whitepaper-page {
    background: var(--light-color);
}

.whitepaper-page .content-section {
    max-width: 100%;
    margin: 0 auto 4rem auto;
    width: 100%;
    box-sizing: border-box;
}

.whitepaper-page .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.whitepaper-page .formats-table,
.whitepaper-page .performance-table {
    width: 100%;
    table-layout: fixed;
}

.download-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 3rem;
    border-radius: 12px;
    text-align: center;
    margin: 2rem 0;
}

.download-section h3 {
    color: white;
    margin-bottom: 1rem;
}

.download-section .btn {
    background: white;
    color: var(--primary-color);
    font-weight: 600;
    margin-top: 1rem;
}

.download-section .btn:hover {
    background: var(--light-color);
    transform: translateY(-2px);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.tech-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
}

.tech-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.tech-card h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tech-card h4 i {
    color: var(--primary-color);
}

/* Utility Classes */
.list-padding-sm {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.list-padding-sm li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.list-padding-sm li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.btn-margin-top {
    margin-top: 1rem;
}

/* Main Content Container */
.main-content {
    padding: 2rem 0;
}

/* Language-specific adjustments for cards */
html[lang="en"] .cert-card h4,
html[lang="es"] .cert-card h4,
html[lang="de"] .cert-card h4,
html[lang="fr"] .cert-card h4,
html[lang="ru"] .cert-card h4,
html[lang="en"] .option-card h4,
html[lang="es"] .option-card h4,
html[lang="de"] .option-card h4,
html[lang="fr"] .option-card h4,
html[lang="ru"] .option-card h4 {
    font-size: 1.15rem;
}

html[lang="ar"] .cert-card h4,
html[lang="ar"] .option-card h4 {
    font-size: 1.15rem;
}

/* Additional Certification Grid for English Pages */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.cert-grid .cert-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
    text-align: center;
}

.cert-grid .cert-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.cert-grid .cert-card h3 {
    color: var(--primary-color);
    margin: 1rem 0;
    font-size: 1.5rem;
}

.cert-grid .cert-card p {
    color: var(--gray-color);
    line-height: 1.6;
}

/* Language-specific cert-grid adjustments */
html[lang="en"] .cert-grid .cert-card h3,
html[lang="es"] .cert-grid .cert-card h3,
html[lang="de"] .cert-grid .cert-card h3,
html[lang="fr"] .cert-grid .cert-card h3,
html[lang="ru"] .cert-grid .cert-card h3 {
    font-size: 1.3rem;
}

html[lang="ar"] .cert-grid .cert-card h3 {
    font-size: 1.3rem;
}

/* Security Features Grid */
.security-features {
    padding: 6rem 0;
    background: white;
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.security-grid .security-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
}

.security-grid .security-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.security-grid .security-icon {
    margin-bottom: 1.5rem;
}

.security-grid .security-icon i {
    font-size: 3rem;
    color: var(--primary-color);
    background: rgba(26, 86, 219, 0.1);
    padding: 1.5rem;
    border-radius: 50%;
    display: inline-block;
}

.security-grid .security-card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.security-grid .security-card p {
    color: var(--gray-color);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* Language-specific security-grid adjustments */
html[lang="en"] .security-grid .security-card h3,
html[lang="es"] .security-grid .security-card h3,
html[lang="de"] .security-grid .security-card h3,
html[lang="fr"] .security-grid .security-card h3,
html[lang="ru"] .security-grid .security-card h3 {
    font-size: 1.3rem;
}

html[lang="ar"] .security-grid .security-card h3 {
    font-size: 1.3rem;
}

/* Additional utility styles */
.text-center {
    text-align: center;
}

.margin-top-2 {
    margin-top: 2rem;
}

.margin-bottom-2 {
    margin-bottom: 2rem;
}

/* Compliance Grid for Arabic Pages */
.compliance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.compliance-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
    text-align: center;
}

.compliance-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.compliance-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.compliance-card p {
    color: var(--gray-color);
    line-height: 1.6;
}

/* Language-specific compliance-card adjustments */
html[lang="en"] .compliance-card h3,
html[lang="es"] .compliance-card h3,
html[lang="de"] .compliance-card h3,
html[lang="fr"] .compliance-card h3,
html[lang="ru"] .compliance-card h3 {
    font-size: 1.3rem;
}

html[lang="ar"] .compliance-card h3 {
    font-size: 1.3rem;
}

/* Missing Section Styles */
.features {
    padding: 6rem 0;
    background: white;
}

.features .section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.features .section-title h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.features .section-title p {
    font-size: 1.2rem;
    color: var(--gray-color);
    max-width: 600px;
    margin: 0 auto;
}

/* Language-specific features adjustments */
html[lang="en"] .features .section-title h2,
html[lang="es"] .features .section-title h2,
html[lang="de"] .features .section-title h2,
html[lang="fr"] .features .section-title h2,
html[lang="ru"] .features .section-title h2 {
    font-size: 2.2rem;
}

html[lang="ar"] .features .section-title h2 {
    font-size: 2.2rem;
}

html[lang="en"] .features .section-title p,
html[lang="es"] .features .section-title p,
html[lang="de"] .features .section-title p,
html[lang="fr"] .features .section-title p,
html[lang="ru"] .features .section-title p {
    font-size: 1.1rem;
}

html[lang="ar"] .features .section-title p {
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    gap: 1rem;
}

.feature-header h3 {
    color: var(--secondary-color);
    font-size: 1.5rem;
    margin: 0;
}

.feature-icon {
    background: rgba(26, 86, 219, 0.1);
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-content {
    margin-top: 1rem;
}

.feature-content p {
    color: var(--gray-color);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.feature-content .btn {
    font-size: 0.9rem;
    padding: 0.5rem 1.2rem;
}

/* Brand Explain Section */
.brand-explain {
    padding: 6rem 0;
    background: #f8fafc;
}

.brand-explain .section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.brand-explain .section-title h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.brand-explain .section-title p {
    font-size: 1.2rem;
    color: var(--gray-color);
    max-width: 600px;
    margin: 0 auto;
}

.brand-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.brand-content h3 {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.meaning-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.meaning-item h4 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.meaning-item p {
    color: var(--gray-color);
    line-height: 1.6;
}

.brand-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.brand-bg {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 40px rgba(26, 86, 219, 0.2);
}

.brand-text {
    font-size: 2rem;
    font-weight: 700;
    color: white;
}

/* Tech Section */
.tech {
    padding: 6rem 0;
    background: white;
}

.tech .section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.tech .section-title h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.tech .section-title p {
    font-size: 1.2rem;
    color: var(--gray-color);
    max-width: 600px;
    margin: 0 auto;
}

.tech-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.tech-image {
    display: flex;
    justify-content: center;
}

.tech-bg {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 20px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.circle-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.tech-content h3 {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.tech-content p {
    color: var(--gray-color);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.tech-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.tech-stat {
    text-align: center;
    padding: 1.5rem;
    background: rgba(26, 86, 219, 0.05);
    border-radius: 12px;
}

.tech-stat h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.tech-stat p {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin: 0;
}

/* Testimonials Section */
.testimonials {
    padding: 6rem 0;
    background: #f8fafc;
}

.testimonials .section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.testimonials .section-title h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.testimonials .section-title p {
    font-size: 1.2rem;
    color: var(--gray-color);
    max-width: 600px;
    margin: 0 auto;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.testimonial-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.client-avatar {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.client-info h4 {
    color: var(--secondary-color);
    margin-bottom: 0.3rem;
}

.client-info p {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin: 0;
}

.testimonial-content {
    color: var(--dark-color);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.rating {
    display: flex;
    gap: 0.25rem;
}

.rating span {
    color: #fbbf24;
}

/* CTA Section */
.cta {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: white;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta .btn {
    background: white;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
}

.cta .btn:hover {
    background: var(--light-color);
    transform: translateY(-2px);
}

/* Footer Styles */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: white;
}

.footer-col p {
    color: var(--gray-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    line-height: 1.6;
}

.footer-col p a {
    color: var(--gray-color);
    text-decoration: none;
    transition: var(--transition);
}

.footer-col p a:hover {
    color: var(--accent-color);
}

.footer-col p .fab,
.footer-col p .fas {
    color: var(--accent-color);
    font-size: 1rem;
    min-width: 16px;
}

/* WhatsApp specific styling */
.footer-col p .fab.fa-whatsapp {
    color: #25D366;
}

.footer-col p .fab.fa-whatsapp + a:hover {
    color: #25D366;
}

.footer-col ul {
    list-style: none;
    padding: 0;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: var(--gray-color);
    font-size: 0.9rem;
} 

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

/* Format List Styles */
.format-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.format-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

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

.format-name {
    flex: 1;
    font-weight: 500;
    color: var(--dark-color);
}

.format-ext {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin: 0 1rem;
}

.compression-ratio {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--success-color);
    color: white;
}

/* Standards List */
.standards-list {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
}

.standards-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(26, 86, 219, 0.05);
    border-radius: 12px;
}

.standards-list li i {
    color: var(--success-color);
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.standards-list li strong {
    color: var(--secondary-color);
    display: block;
    margin-bottom: 0.5rem;
}

.standards-list li div {
    color: var(--gray-color);
    line-height: 1.6;
}

/* Timeline */
.compliance-timeline {
    position: relative;
    margin: 3rem 0;
}

.timeline-item {
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    border-left: 4px solid var(--primary-color);
}

.timeline-date {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-item h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.timeline-item p {
    color: var(--gray-color);
    line-height: 1.6;
}

/* Architecture Diagram */
.architecture-diagram {
    text-align: center;
    margin: 2rem 0;
}

.arch-diagram {
    background: rgba(26, 86, 219, 0.05);
    border: 2px dashed var(--primary-color);
    border-radius: 12px;
    padding: 3rem;
    margin: 2rem 0;
}

.note-icon {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.note-text {
    color: var(--gray-color);
    font-style: italic;
}

/* Requirements Grid */
.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.requirement-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.requirement-card h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.requirement-card h4 i {
    color: var(--primary-color);
}

/* Process Steps */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.step {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    text-align: center;
    position: relative;
}

.step::after {
    content: '→';
    position: absolute;
    right: -1.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color);
    font-size: 2rem;
}

.step:last-child::after {
    display: none;
}

.step h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.step p {
    color: var(--gray-color);
    line-height: 1.6;
}

/* Flex Container */
.flex-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.flex-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    text-align: center;
}

.flex-item h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.flex-item p {
    color: var(--gray-color);
    line-height: 1.6;
}

/* List Padding Variations */
.list-padding {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
}

.list-padding li {
    padding: 1rem 0;
    position: relative;
    padding-left: 2rem;
}

.list-padding li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.list-padding-xs {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0;
}

.list-padding-xs li {
    padding: 0.25rem 0;
    position: relative;
    padding-left: 1.2rem;
}

.list-padding-xs li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* Margin Utilities */
.margin-left-sm {
    margin-left: 1rem;
}

.margin-left-1 {
    margin-left: 1rem;
}

/* Floating Animation */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .brand-container,
    .tech-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .tech-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .step::after {
        display: none;
    }
    
    .flex-container {
        grid-template-columns: 1fr;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
    }
    
    .meaning-grid {
        grid-template-columns: 1fr;
    }
    
    .brand-bg {
        width: 200px;
        height: 200px;
    }
    
    .tech-bg {
        width: 300px;
        height: 300px;
    }
}

/* RTL Support for Arabic */
html[lang="ar"] .compliance-grid,
html[lang="ar"] .cert-grid,
html[lang="ar"] .security-grid,
html[lang="ar"] .support-grid,
html[lang="ar"] .tech-grid,
html[lang="ar"] .api-grid,
html[lang="ar"] .deployment-options,
html[lang="ar"] .formats-grid {
    direction: rtl;
}

html[lang="ar"] .features-list li {
    flex-direction: row-reverse;
}

html[lang="ar"] .list-padding-sm li {
    padding-right: 1.5rem;
    padding-left: 0;
}

html[lang="ar"] .list-padding-sm li::before {
    right: 0;
    left: auto;
}

/* Main tag styles for semantic HTML */
main {
    display: block;
}

/* Section styles for semantic HTML */
.section {
    padding: 4rem 0;
}

.section h2 {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
    text-align: center;
}

/* Language-specific section adjustments */
html[lang="en"] .section h2,
html[lang="es"] .section h2,
html[lang="de"] .section h2,
html[lang="fr"] .section h2,
html[lang="ru"] .section h2 {
    font-size: 1.8rem;
}

html[lang="ar"] .section h2 {
    font-size: 1.8rem;
}

/* Additional security card styles for different layouts */
.security-grid .security-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    display: block;
    text-align: center;
}

/* 特色区域 */
.features {
    padding: 6rem 0;
    background-color: white;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.section-title p {
    font-size: 1.2rem;
    color: var(--gray-color);
    max-width: 700px;
    margin: 0 auto;
}

/* 西方语言区域标题字体调整 */
html[lang="en"] .section-title h2,
html[lang="es"] .section-title h2,
html[lang="de"] .section-title h2,
html[lang="fr"] .section-title h2,
html[lang="ru"] .section-title h2 {
    font-size: 2.2rem; /* 西方语言区域标题比中文小约10% */
}

html[lang="en"] .section-title p,
html[lang="es"] .section-title p,
html[lang="de"] .section-title p,
html[lang="fr"] .section-title p,
html[lang="ru"] .section-title p {
    font-size: 1.1rem; /* 西方语言区域描述比中文小约10% */
}

html[lang="ar"] .section-title h2 {
    font-size: 2.2rem; /* 阿拉伯文区域标题比中文小约10% */
}

html[lang="ar"] .section-title p {
    font-size: 1.1rem; /* 阿拉伯文区域描述比中文小约10% */
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
    border-color: rgba(26, 86, 219, 0.2);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    flex-shrink: 0;
}

.feature-icon .iconify {
    font-size: 32px;
    color: var(--primary-color);
}

.feature-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.feature-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.feature-content {
    flex: 1;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin: 0;
    color: var(--secondary-color);
}

.feature-icon i {
    color: white;
    font-size: 1.2rem;
}
.feature-card p {
    color: var(--gray-color);
    margin-bottom: 1.5rem;
}

/* 品牌解释区域 */
.brand-explain {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f0f4f8 0%, #e6ebf5 100%);
}

.brand-container {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.brand-content {
    flex: 1;
}

.brand-image {
    flex: 1;
    position: relative;
}

.brand-content h3 {
    font-size: 2rem !important;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.brand-content p {
    color: var(--gray-color);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.brand-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    font-weight: bold;
    color: #ffffff;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    z-index: 1;
}

.meaning-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.meaning-item {
    background: rgba(255, 255, 255, 0.7);
    border-radius: 10px;
    padding: 1.5rem;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(226, 232, 240, 0.8);
}

.meaning-item h4 {
    font-size: 1.3rem !important;
    color: var(--primary-color);
    margin-bottom: 0.8rem;
}

.meaning-item p {
    margin-bottom: 0;
    font-size: 1rem;
}

.brand-bg {
    width: 100%;
    height: 400px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><text x="50%" y="50%" font-family="Arial" font-size="20" fill="white" opacity="0.3" text-anchor="middle" dominant-baseline="middle">丑梨数据</text></svg>');
    background-size: cover;
    opacity: 0.2;
}

/* 技术优势 */
.tech {
    padding: 6rem 0;
    background: white;
}

.tech-container {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.tech-image {
    flex: 1;
}

.tech-content {
    flex: 1;
}

.tech-bg {
    width: calc(100% - 2rem);
    height: 400px;
    background: linear-gradient(45deg, #0f172a, #1e293b);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><circle cx="100" cy="100" r="40" stroke="%233b82f6" stroke-width="2" stroke-dasharray="5,3" fill="none"/><path d="M100,50 L100,150 M50,100 L150,100" stroke="%233b82f6" stroke-width="1" opacity="0.6"/><circle cx="100" cy="100" r="60" stroke="%233b82f6" stroke-width="1" stroke-dasharray="2,2" fill="none" opacity="0.3"/><circle cx="100" cy="100" r="70" stroke="%233b82f6" stroke-width="1" stroke-dasharray="2,2" fill="none" opacity="0.3"/></svg>');
    opacity: 0.2;
}

.circle-container {
    position: relative;
    width: 250px;
    height: 250px;
}

.circle-item {
    position: absolute;
    width: 100px;
    height: 100px;
    background: rgba(26, 86, 219, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(59, 130, 246, 0.5);
    animation: float 6s infinite ease-in-out;
}

.circle-item:nth-child(1) {
    top: 0;
    left: 75px;
    animation-delay: 0s;
    background: rgba(26, 86, 219, 0.2);
}

.circle-item:nth-child(2) {
    top: 75px;
    left: 0;
    animation-delay: 1s;
    background: rgba(0, 180, 216, 0.2);
}

.circle-item:nth-child(3) {
    top: 75px;
    right: 0;
    animation-delay: 2s;
    background: rgba(26, 86, 219, 0.2);
}

.circle-item:nth-child(4) {
    bottom: 0;
    left: 75px;
    animation-delay: 3s;
    background: rgba(0, 180, 216, 0.2);
}

@keyframes float {
    0%, 100% { transform: translateY(0) translateX(0); }
    25% { transform: translateY(-15px) translateX(5px); }
    50% { transform: translateY(10px) translateX(-10px); }
    75% { transform: translateY(5px) translateX(10px); }
}

.circle-item i {
    font-size: 2.5rem;
    color: white;
}

.circle-item .iconify {
    font-size: 48px;
    color: white;
}

.tech-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.tech-stat {
    flex: 1;
    min-width: 150px;
    padding: 1.0rem;
    background: var(--light-color);
    box-shadow: var(--shadow);
    border-radius: 8px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.tech-stat h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.tech-stat p {
    color: var(--gray-color);
    font-size: 0.9rem;
}

/* 西方语言技术统计字体调整 */
html[lang="en"] .tech-stat h3,
html[lang="es"] .tech-stat h3,
html[lang="de"] .tech-stat h3,
html[lang="fr"] .tech-stat h3,
html[lang="ru"] .tech-stat h3 {
    font-size: 1.6rem; /* 西方语言技术统计数字比中文小约10% */
}

html[lang="en"] .tech-stat p,
html[lang="es"] .tech-stat p,
html[lang="de"] .tech-stat p,
html[lang="fr"] .tech-stat p,
html[lang="ru"] .tech-stat p {
    font-size: 0.8rem; /* 西方语言技术统计文字比中文小约10% */
}

/* 客户评价 */
.testimonials {
    padding: 6rem 0;
    background: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.testimonial-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.client-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    font-weight: bold;
    color: white;
    font-size: 1.5rem;
}

.client-info h4 {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 0.2rem;
}

.client-info p {
    font-size: 0.9rem;
    color: var(--gray-color);
}

/* 西方语言客户评价字体调整 */
html[lang="en"] .client-info h4,
html[lang="es"] .client-info h4,
html[lang="de"] .client-info h4,
html[lang="fr"] .client-info h4,
html[lang="ru"] .client-info h4 {
    font-size: 1.05rem; /* 西方语言客户姓名比中文小约10% */
}

html[lang="en"] .client-info p,
html[lang="es"] .client-info p,
html[lang="de"] .client-info p,
html[lang="fr"] .client-info p,
html[lang="ru"] .client-info p {
    font-size: 0.8rem; /* 西方语言客户职位比中文小约10% */
}

.testimonial-content {
    font-style: italic;
    color: var(--dark-color);
    margin-bottom: 1.5rem;
}

.rating {
    color: #ffc107;
    margin-bottom: 1rem;
}

/* CTA区域 */
.cta {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.cta p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 2rem;
    opacity: 0.9;
}

/* 西方语言CTA区域字体调整 */
html[lang="en"] .cta h2,
html[lang="es"] .cta h2,
html[lang="de"] .cta h2,
html[lang="fr"] .cta h2,
html[lang="ru"] .cta h2 {
    font-size: 2.2rem; /* 西方语言CTA标题比中文小约10% */
}

html[lang="en"] .cta p,
html[lang="es"] .cta p,
html[lang="de"] .cta p,
html[lang="fr"] .cta p,
html[lang="ru"] .cta p {
    font-size: 1.1rem; /* 西方语言CTA描述比中文小约10% */
}

.cta .btn {
    background: white;
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.cta .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    color: var(--primary-color);
    background: rgba(255, 255, 255, 0.95);
}

/* 页脚 */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-col h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

/* 西方语言页脚标题字体调整 */
html[lang="en"] .footer-col h3,
html[lang="es"] .footer-col h3,
html[lang="de"] .footer-col h3,
html[lang="fr"] .footer-col h3,
html[lang="ru"] .footer-col h3 {
    font-size: 1.35rem; /* 西方语言页脚标题比中文小约10% */
}

html[lang="ar"] .footer-col h3 {
    font-size: 1.35rem; /* 阿拉伯文页脚标题比中文小约10% */
}

.footer-col h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--accent-color);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 1rem;
}

.footer-col ul li a {
    color: var(--gray-color);
    text-decoration: none;
    transition: var(--transition);
    font-size: 1rem;
}

html[lang="cn"] .footer-col ul li a,
html[lang="ja"] .footer-col ul li a,
html[lang="ko"] .footer-col ul li a {
    font-size: 1rem; /* 西方语言页脚链接比中文小约10% */
}

/* 西方语言页脚字体调整 */
html[lang="en"] .footer-col ul li a,
html[lang="es"] .footer-col ul li a,
html[lang="de"] .footer-col ul li a,
html[lang="fr"] .footer-col ul li a,
html[lang="ru"] .footer-col ul li a {
    font-size: 0.9rem; /* 西方语言页脚链接比中文小约10% */
}

html[lang="ar"] .footer-col ul li a {
    font-size: 0.9rem; /* 阿拉伯文页脚链接比中文小约10% */
}

.footer-col ul li a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}



.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: var(--gray-color);
    font-size: 0.9rem;
} 

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: var(--gray-color);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-text {
        padding-right: 0;
        margin-bottom: 0;
    }
    
    .hero-btns {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .tech-container, .brand-container {
        flex-direction: column;
        gap: 3rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.5rem;
    }
    
    /* Language-specific responsive adjustments */
    html[lang="ar"] .hero-text,
    html[lang="he"] .hero-text {
        text-align: center;
    }
    
    html[lang="ar"] .navbar .container {
        flex-direction: row;
    }
    
    html[lang="ar"] .nav-links {
        margin-right: 0;
        margin-left: 1.5rem; /* 阿拉伯文响应式导航栏间距调整 */
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    /* 移动端导航栏样式 */
    .mobile-menu-toggle {
        display: block;
    }
    
    .navbar {
        padding: 0.75rem 1rem;
        min-height: 60px;
        display: flex;
        align-items: center;
    }
    
    .navbar .container {
        display: grid;
        grid-template-columns: auto 1fr auto;
        align-items: center;
        position: relative;
        min-height: 45px;
        height: 45px;
        padding: 0;
        gap: 0;
        /* 为汉堡菜单和语言选择器预留边距 */
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
    
    /* 在移动端隐藏导航链接，当没有active类时 */
    .navbar .container > .nav-links:not(.active) {
        display: none;
    }
    
    /* 移动端布局：汉堡菜单在左，logo在中间，语言选择器在右 */
    .mobile-menu-toggle {
        grid-column: 1;
        justify-self: start;
        margin-left: 0;
    }
    
    .logo {
        grid-column: 2;
        justify-self: center;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 1rem;
    }
    
    .navbar-right {
        grid-column: 3;
        justify-self: end;
        display: flex;
        align-items: center;
        height: 32px;
        min-height: 32px;
        margin-right: 0;
    }
    
    .logo-icon {
        width: 32px;
        height: 32px;
        border: none !important;
        outline: none !important;
        box-shadow: none !important;
    }
    
    .logo-icon img {
        border: none !important;
        outline: none !important;
        box-shadow: none !important;
    }
    
    /* 移动端隐藏立即咨询按钮，将在汉堡菜单中显示 */
    .navbar-right .btn {
        display: none;
    }
    
    .lang-selector {
        min-width: 32px !important;
        max-width: 32px !important;
        height: 32px !important;
        margin-right: 0 !important;
        flex-shrink: 0 !important;
        border: none !important;
        box-shadow: none !important;
        background: transparent !important;
        margin-left: auto !important;
        position: relative !important;
        z-index: 10000 !important;
    }
    
    .lang-selector-toggle {
        padding: 4px !important;
        border: none !important;
        box-shadow: none !important;
        background: transparent !important;
        border-radius: 4px !important;
        transition: background-color 0.2s ease !important;
    }
    
    .lang-selector-toggle:hover {
        background-color: rgba(0, 0, 0, 0.05) !important;
    }
    
    .lang-current .lang-name {
        display: none;
    }
    
    .lang-arrow {
        display: none;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        border-top: 1px solid rgba(0, 0, 0, 0.1);
        z-index: 1000;
        max-height: calc(100vh - 80px);
        overflow-y: auto;
    }
    
    /* 在移动菜单中添加立即咨询按钮 */
    .nav-links li:last-child {
        border-top: 1px solid rgba(0, 0, 0, 0.1);
        padding-top: 1rem;
        margin-top: 1rem;
    }
    
    .nav-links li:last-child a {
        background: var(--primary-color);
        color: white;
        text-align: center;
        font-weight: 600;
        padding: 1rem;
        border-radius: 8px;
        transition: var(--transition);
    }
    
    .nav-links li:last-child a:hover {
        background: var(--primary-dark);
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links li {
        margin: 0.5rem 0;
        width: 100%;
        text-align: center;
    }
    
    .nav-links a {
        padding: 1rem;
        display: block;
        font-size: 1rem;
        border-radius: 8px;
        transition: var(--transition);
    }
    
    .nav-links a:hover {
        background: var(--light-color);
        transform: none;
    }
    
    .hero-content {
        padding: 1rem 0;
    }
    
    /* 压缩hero动图 */
    .hero::before {
        background-size: 150% auto !important;
        height: 60% !important;
        opacity: 0.3 !important;
    }
    
    .hero-content {
        min-height: calc(100vh - 8rem) !important;
        padding: 1rem 0 !important;
    }
    
    .hero-image {
        width: calc(100vw - 2rem) !important;
        max-width: calc(100vw - 2rem) !important;
        margin: 0 auto !important;
    }
    
    .brand-image {
        display: none !important;
    }
    
    .hero h1 {
        font-size: 2.5rem;
        line-height: 1.3;
    }
    
    .hero p {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    /* 移动端Footer简化 - 只显示联系方式 */
    .footer-grid {
        display: flex;
        flex-direction: column;
        gap: 2rem;
    }
    
    .footer-col:not(:last-child) {
        display: none;
    }
    
    .footer-col:last-child {
        text-align: center;
        width: 100%;
    }
    
    .footer-col h3 {
        text-align: center;
        margin-bottom: 1.5rem;
    }
    
    .footer-col p {
        text-align: center;
        margin-bottom: 1rem;
    }
    
    .footer-bottom {
        text-align: center;
        font-size: 0.8rem;
        padding-top: 1rem;
        margin-top: 1rem;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .statistics {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .brand-container,
    .tech-container {
        flex-direction: column;
        gap: 2rem;
    }
    
    .tech-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .meaning-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    

    
    .nav-links {
        display: none;
    }
    
    .navbar-right {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-end;
    }
    
    .logo {
        margin-bottom: 0.5rem;
    }
    
    /* 语言选择器在移动端位于navbar-right */
    .lang-selector.navbar-lang {
        position: relative;
        margin-left: auto;
        margin-right: 0;
        flex-shrink: 0;
    }
    
    .lang-selector-toggle {
        padding: 8px 12px;
        font-size: 12px;
    }
    
    .lang-selector-dropdown button {
        padding: 8px 12px;
        font-size: 11px;
    }
    
    /* 移动端确保下拉菜单在最顶层 */
    .lang-selector .lang-selector-dropdown {
        z-index: 99999 !important;
        position: fixed !important;
        top: 60px !important;
        right: 10px !important;
        left: auto !important;
        max-width: 200px !important;
        min-width: 150px !important;
    }
    
    html[lang="ar"] .lang-selector {
        right: auto;
        left: 20px;
    }
    
    /* Language-specific mobile optimizations */
    html[lang="ja"] .hero h1,
    html[lang="ko"] .hero h1 {
        font-size: 2.2rem;
    }
    
    html[lang="ar"] .hero h1 {
        font-size: 2.3rem;
    }
    
    /* RTL mobile adjustments */
    html[lang="ar"] .navbar .container {
        grid-template-columns: auto 1fr auto;
        direction: rtl;
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
    
    html[lang="ar"] .mobile-menu-toggle {
        grid-column: 1;
        justify-self: end;
        margin-left: 0;
        margin-right: 0;
    }
    
    html[lang="ar"] .navbar-right {
        grid-column: 3;
        justify-self: start;
        margin-right: 0;
        margin-left: 0;
    }
    
    html[lang="ar"] .logo {
        grid-column: 2;
        justify-self: center;
        flex-direction: row-reverse;
        margin: 0 1rem;
    }
    
    html[lang="ar"] .logo-icon {
        margin-right: 0;
        margin-left: 10px;
    }
    
    html[lang="ar"] .footer-grid {
        direction: rtl;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .hero {
        padding-top: 7rem;
    }
    
    .hero h1 {
        font-size: 1.8rem;
        line-height: 1.2;
        margin-top: 1rem;
    }
    
    .hero p {
        font-size: 0.9rem;
    }
    
    .hero-btns {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        padding: 1rem;
        font-size: 0.9rem;
        white-space: nowrap; /* 小屏幕下按钮文字仍不换行 */
        text-align: center; /* 确保文字居中对齐 */
        overflow: hidden; /* 防止内容溢出 */
        text-overflow: ellipsis; /* 如果太长显示省略号 */
        display: flex;
        align-items: center;
        justify-content: center;
        height: auto;
        min-height: 48px; /* 确保按钮有足够高度 */
    }
    
    .statistics {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        padding: 1.5rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    

    
    .social-links {
        justify-content: center;
    }
    
    /* Language-specific ultra-small adjustments */
    html[lang="ja"] .hero h1,
    html[lang="ko"] .hero h1 {
        font-size: 1.6rem;
    }
    
    html[lang="ar"] .hero h1 {
        font-size: 1.7rem;
    }
    
    html[lang="de"] .hero h1,
    html[lang="ru"] .hero h1 {
        font-size: 2rem;
    }
    
    /* 480px下语言选择器样式 */
    .lang-selector.navbar-lang {
        min-width: 28px !important;
        max-width: 28px !important;
        height: 28px !important;
        flex-shrink: 0;
        position: relative;
    }
    
    /* 进一步压缩hero动图和调整高度 */
    .hero::before {
        background-size: 200% auto !important;
        height: 50% !important;
        opacity: 0.25 !important;
    }
    
    .hero-content {
        min-height: calc(100vh - 7rem) !important;
    }
    
    .hero-image {
        width: calc(100vw - 1.5rem) !important;
        max-width: calc(100vw - 1.5rem) !important;
        margin: 0 auto !important;
    }
    
    .brand-image {
        display: none !important;
    }
    
    /* 移动端Footer简化 - 只显示联系方式 */
    .footer-grid {
        display: flex;
        flex-direction: column;
        gap: 2rem;
    }
    
    .footer-col:not(:last-child) {
        display: none;
    }
    
    .footer-col:last-child {
        text-align: center;
        width: 100%;
    }
    
    .footer-col h3 {
        text-align: center;
        margin-bottom: 1.5rem;
    }
    
    .footer-col p {
        text-align: center;
        margin-bottom: 1rem;
    }
    
    .footer-bottom {
        text-align: center;
        font-size: 0.8rem;
        padding-top: 1rem;
        margin-top: 1rem;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    html[lang="ar"] .lang-selector.navbar-lang {
        right: auto;
        left: 15px;
    }
    
    .feature-icon {
        width: 40px;
        height: 40px;
    }
    
    .feature-icon i {
        font-size: 1.2rem;
    }
}

/* Print styles for different languages */
@media print {
    .lang-selector {
        display: none;
    }
    
    html[lang="ar"] body {
        direction: rtl;
    }
}

/* Enhanced image optimization and loading states */
.logo-icon {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

/* 桌面端logo尺寸 */
@media (min-width: 1025px) {
    .logo-icon {
        width: 108px;
        height: 108px;
    }
}

.logo-icon img {
    transition: opacity 0.3s ease, transform 0.3s ease, filter 0.3s ease;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.logo-icon:hover img {
    transform: scale(1.1) rotate(5deg);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.logo-icon img:not([src]),
.logo-icon img[src=""] {
    opacity: 0;
}

.logo-icon img[src] {
    opacity: 1;
}

/* Fallback for missing logo */
.logo-icon:not(:has(img[src]))::before {
    content: "UP";
    font-weight: bold;
    color: white;
    font-size: 1.2rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

/* Enhanced lazy loading */
.lazy-load {
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    transform: scale(0.95);
}

.lazy-load.loaded {
    opacity: 1;
    transform: scale(1);
}

/* Improved image error state */
.image-error {
    background: linear-gradient(45deg, #e5e7eb, #9ca3af);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6b7280;
    min-height: 100px;
    border-radius: 8px;
    position: relative;
}

.image-error::before {
    content: "⚠️";
    font-size: 2rem;
    position: absolute;
}

.image-error::after {
    content: "图片加载失败";
    font-size: 0.9rem;
    position: absolute;
    bottom: 10px;
}

/* Better image handling for different languages */
html[lang="ar"] .logo-icon img {
    transform: scaleX(-1);
}

html[lang="ar"] .image-error::after {
    content: "فشل تحميل الصورة";
}

html[lang="ja"] .image-error::after {
    content: "画像の読み込み失敗";
}

html[lang="ko"] .image-error::after {
    content: "이미지 로드 실패";
}

html[lang="ru"] .image-error::after {
    content: "Ошибка загрузки изображения";
}

html[lang="de"] .image-error::after {
    content: "Bild konnte nicht geladen werden";
}

html[lang="fr"] .image-error::after {
    content: "Échec du chargement de l'image";
}

html[lang="es"] .image-error::after {
    content: "Error al cargar la imagen";
}

html[lang="en"] .image-error::after {
    content: "Image failed to load";
}

/* Performance optimizations */
/* Performance optimizations */
.logo-icon img {
    will-change: transform;
}

.hero-image img,
.brand-bg img {
    object-fit: cover;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.image-placeholder img,
.lazy-load {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.3s ease;
}

.lazy-load.loaded,
.image-placeholder img.loaded {
    opacity: 1;
}

/* Optimized placeholder styles */
.image-placeholder {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.image-placeholder::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        45deg,
        rgba(255,255,255,0.05),
        rgba(255,255,255,0.05) 10px,
        rgba(255,255,255,0.1) 10px,
        rgba(255,255,255,0.1) 20px
    );
    animation: shimmer 2s infinite linear;
    pointer-events: none;
}

@keyframes shimmer {
    0% { transform: translateX(-20px); }
    100% { transform: translateX(20px); }
}

/* Hover effects for images */
.hero-image:hover img,
.brand-image:hover img {
    transform: scale(1.02);
}

/* Enhanced icon visibility and loading */
.feature-icon,
.tech-icon,
.circle-item {
    position: relative;
    min-height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i,
.tech-icon i,
.circle-item i {
    font-size: 2rem;
    color: white;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
    z-index: 2;
    position: relative;
}

/* Icon fallback for missing FontAwesome */
.feature-icon i::before,
.tech-icon i::before,
.circle-item i::before {
    display: block;
}

/* Enhanced icon positioning */
.circle-item {
    position: absolute;
    width: 100px;
    height: 100px;
    background: rgba(26, 86, 219, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(59, 130, 246, 0.5);
    animation: float 6s infinite ease-in-out;
}

/* Social media icon improvements */
.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.social-links a:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: var(--gray-color);
    font-size: 0.9rem;
} 

.social-links a .iconify {
    font-size: 1.2rem;
    transition: var(--transition);
    z-index: 2;
}

.social-links a:hover .iconify {
    transform: scale(1.1);
}

/* WeChat QR Code Click Effect */
.social-links a[data-qr="wechat"] {
    position: relative;
    cursor: pointer;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.social-links a[data-qr="wechat"]:active {
    transform: scale(0.95);
}

.social-links a[data-qr="wechat"].show-qr {
    background-color: #1d4ed8;
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.4);
}

/* WeChat QR popup element */
.wechat-qr-popup {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 10px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    z-index: 9999;
    pointer-events: none;
}

/* Enhanced loading states for all images */
img {
    transition: opacity 0.3s ease, transform 0.3s ease;
    border-radius: 8px;
}

img[loading="lazy"] {
    opacity: 0;
    transform: scale(0.95);
}

img[loading="lazy"].loaded {
    opacity: 1;
    transform: scale(1);
}

/* Enhanced image styling for performance charts */
.performance-chart {
    width: 100%;
    max-width: 900px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.performance-chart:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

/* Image container for better responsive behavior */
.image-container {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    background: linear-gradient(45deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 1rem;
    margin: 1.5rem 0;
}

.image-container img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.image-container:hover img {
    transform: scale(1.02);
}

/* Caption styling for images */
.image-caption {
    text-align: center;
    font-size: 0.9rem;
    color: #64748b;
    margin-top: 0.5rem;
    font-style: italic;
}

/* WeChat QR code styling */
.wechat-qr-popup img {
    border-radius: 12px !important;
    border: 4px solid white !important;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3) !important;
    transition: transform 0.3s ease, box-shadow 0.3s ease !important;
    background: white;
}

.wechat-qr-popup img:hover {
    transform: scale(1.05) !important;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4) !important;
}

/* Loading skeleton for images */
.image-loading-skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 8px;
    min-height: 200px;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Image error fallback styling */
img.error {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8fafc;
    border: 2px dashed #cbd5e1;
    color: #64748b;
    font-size: 0.9rem;
    padding: 2rem;
    border-radius: 8px;
    min-height: 200px;
    opacity: 0.8;
}

img.error::before {
    content: "📷";
    font-size: 2rem;
    margin-bottom: 0.5rem;
    display: block;
}

/* Image error fallback container styling */
.image-error-fallback {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border: 2px dashed #cbd5e1;
    border-radius: 8px;
    color: #64748b;
    font-size: 0.9rem;
    padding: 2rem;
    min-height: 200px;
    text-align: center;
    margin: 1rem 0;
    transition: all 0.3s ease;
}

.image-error-fallback:hover {
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
    transform: translateY(-2px);
}

/* Add visual indicator for zoomable images */
img[style*="zoom-in"], 
img.performance-chart,
.image-container img:not(.no-zoom),
.arch-diagram img {
    position: relative;
}

img[style*="zoom-in"]:hover::after,
img.performance-chart:hover::after,
.image-container img:not(.no-zoom):hover::after,
.arch-diagram img:hover::after {
    content: "🔍";
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    z-index: 10;
    pointer-events: none;
}

/* Image zoom functionality */
.image-zoom {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    cursor: pointer;
}

.image-zoom.active {
    opacity: 1;
    visibility: visible;
}

.image-zoom img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.image-zoom.active img {
    transform: scale(1);
}

.image-zoom-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.image-zoom-close:hover {
    opacity: 1;
}

/* Responsive image optimizations */
@media (max-width: 768px) {
    .performance-chart {
        max-width: 100%;
        border-radius: 8px;
    }
    
    .arch-diagram {
        padding: 2rem 1rem;
        margin: 1rem 0;
    }
    
    .arch-diagram img {
        max-width: 95%;
        max-height: 300px;
    }
    
    .chart-container {
        padding: 1.5rem;
        margin: 1.5rem 0;
    }
    
    .chart-placeholder {
        min-height: 300px;
    }
    
    .image-container {
        padding: 0.5rem;
        margin: 1rem 0;
    }
    
    .image-zoom img {
        max-width: 95vw;
        max-height: 95vh;
    }
    
    .image-zoom-close {
        top: 1rem;
        right: 1rem;
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .performance-chart {
        border-radius: 6px;
    }
    
    .arch-diagram img {
        max-height: 200px;
    }
    
    .chart-placeholder {
        min-height: 250px;
    }
}

/* Better icon loading with fallbacks */
.feature-icon i::before {
    display: block;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    -webkit-font-smoothing: antialiased;
}

/* SVG icon fallback */
.fallback-icon {
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

/* Utility classes to replace inline styles */
.list-padding {
    padding-left: 2rem;
    margin: 1rem 0;
}

.list-padding-sm {
    padding-left: 1.5rem;
    margin-top: 1rem;
}

.list-padding-xs {
    padding-left: 1.5rem;
    margin: 0.5rem 0;
}

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

.flex-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin: 2rem 0;
}

.flex-item {
    flex: 1;
    min-width: 250px;
    background: #f1f5f9;
    padding: 1.5rem;
    border-radius: 8px;
}

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

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

/* Primary Button */
.btn-primary {
    background: var(--primary-color);
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

/* Error Button Secondary */
.error-btn-secondary {
    background: transparent;
    color: #64748b;
    border: 2px solid #64748b;
    padding: 12px 30px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
}

.error-btn-secondary:hover {
    background: #64748b;
    color: white;
    transform: translateY(-2px);
}

.margin-top-sm {
    margin-top: 1rem;
}

.margin-top-md {
    margin-top: 2rem;
}

.margin-left-sm {
    margin-left: 1rem;
}

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

.arrow-down {
    font-size: 2rem;
    color: var(--primary-color);
    text-align: center;
    margin: 1rem 0;
}

.note-text {
    text-align: center;
    color: #64748b;
    font-size: 0.9rem;
}

.note-icon {
    margin-bottom: 1rem;
}

/* Architect diagram placeholder */
.arch-diagram {
    text-align: center;
    color: #1e293b;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border: 2px dashed rgba(26, 86, 219, 0.3);
    border-radius: 16px;
    margin: 2rem 0;
    position: relative;
    transition: all 0.3s ease;
}

.arch-diagram:hover {
    border-color: rgba(26, 86, 219, 0.6);
    background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
    transform: scale(1.02);
}

.arch-diagram img {
    max-width: 90%;
    max-height: 500px;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin: 1rem auto;
    display: block;
}

.arch-diagram img:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

/* Diagram placeholder styling */
.diagram-placeholder {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: 12px;
    padding: 2rem;
    margin: 1.5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.diagram-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(26, 86, 219, 0.02) 50%, transparent 70%);
    animation: shimmer 4s infinite;
}

.diagram-placeholder .arch-diagram {
    border: none;
    background: transparent;
    box-shadow: none;
    padding: 1rem;
}

.diagram-placeholder .note-text {
    font-size: 0.85rem;
    color: #94a3b8;
    margin-top: 0.5rem;
    font-style: italic;
}

.version-section {
    margin-top: 1rem;
}

/* Table styles */
.performance-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
    overflow-x: auto;
    margin: 2rem 0;
}

.performance-table th,
.performance-table td {
    padding: 1rem;
    border: 1px solid #e2e8f0;
}

.performance-table th {
    background: #f1f5f9;
    text-align: left;
}

.performance-table td {
    text-align: center;
}

.performance-table tr:nth-child(even) {
    background: #f8fafc;
}

.table-container {
    overflow-x: auto;
    margin: 2rem 0;
}

.tech-step {
    margin-top: 1.5rem;
}

.btn-margin-top {
    margin-top: 1rem;
}

.btn-margin-left {
    margin-left: 1rem;
}

/* Performance chart styles */
.bar-fill-secondary {
    width: 60%;
    background: #64748b;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

/* Utility classes for inline style replacements */
.btn-margin-top {
    margin-top: 1rem !important;
}

.btn-white-bg {
    background: white !important;
    color: var(--primary-color) !important;
}

.bar-95 {
    width: 95% !important;
}

.bar-60 {
    width: 60% !important;
}

.bar-75 {
    width: 75% !important;
}

.bar-70 {
    width: 70% !important;
}

.progress-100 {
    width: 100% !important;
}

.progress-80 {
    width: 80% !important;
}

.progress-60 {
    width: 60% !important;
}

.progress-40 {
    width: 40% !important;
}

.margin-left-1 {
    margin-left: 1rem !important;
}

.margin-top-1-5 {
    margin-top: 1.5rem !important;
}

.margin-top-2 {
    margin-top: 2rem !important;
}

.margin-bottom-2 {
    margin-bottom: 2rem !important;
}

.font-size-sm {
    font-size: 0.9rem !important;
}

.padding-left-2 {
    padding-left: 2rem !important;
}

.background-f8fafc {
    background: #f8fafc !important;
}

.table-cell {
    padding: 1rem !important;
    border: 1px solid #e2e8f0 !important;
}

.text-center-cell {
    padding: 1rem !important;
    text-align: center !important;
    border: 1px solid #e2e8f0 !important;
}

/* 子页面样式 */
.main-content {
    padding-top: 100px;
    padding-bottom: 6rem;
}

.page-header {
    text-align: center;
    margin-bottom: 4rem;
}

.page-header h1 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    color: var(--gray-color);
    max-width: 700px;
    margin: 0 auto;
}

.content-section {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.content-section h2 {
    font-size: 1.8rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.content-section h3 {
    font-size: 1.4rem;
    color: var(--secondary-color);
    margin: 1.5rem 0 1rem;
}

.content-section p {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.performance-icon {
    width: 70px;
    height: 70px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.performance-icon i {
    color: white;
    font-size: 1.8rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    background: #f8fafc;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    border: 1px solid #e2e8f0;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 1rem 0;
}

.stat-label {
    color: var(--gray-color);
    font-size: 1rem;
}

.chart-container {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: 16px;
    padding: 2.5rem;
    margin: 2.5rem 0;
    text-align: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.chart-container:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 12px -1px rgba(0, 0, 0, 0.1), 0 4px 8px -1px rgba(0, 0, 0, 0.06);
}

.chart-placeholder {
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 50%, #e2e8f0 100%);
    border-radius: 12px;
    margin: 1.5rem 0;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
}

.chart-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(26, 86, 219, 0.03) 50%, transparent 70%);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
}

.comparison-table th,
.comparison-table td {
    padding: 1rem;
    text-align: center;
    border: 1px solid #e2e8f0;
}

.comparison-table th {
    background: #f1f5f9;
    font-weight: 600;
}

.comparison-table tr:nth-child(even) {
    background: #f8fafc;
}

/* Compatibility Table */
.compatibility-table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    min-width: 600px;
}

.compatibility-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 2rem -1rem;
    padding: 0 1rem;
}

.compatibility-table thead {
    background: var(--primary-color);
    color: white;
}

.compatibility-table th,
.compatibility-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

.compatibility-table th {
    font-weight: 600;
    font-size: 0.9rem;
}

.compatibility-table td {
    font-size: 0.9rem;
}

.compatibility-table tbody tr:hover {
    background: #f8fafc;
}

.compatibility-table .supported {
    color: var(--success-color);
    font-weight: 600;
}

.compatibility-table .supported i {
    margin-right: 0.5rem;
}

.legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 1rem 0;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
}

.excellent { background-color: #10b981; }
.good { background-color: #3b82f6; }
.fair { background-color: #f59e0b; }
.limited { background-color: #94a3b8; }

.format-list {
    list-style: none;
}

.format-list li {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid #e2e8f0;
}

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

.format-name {
    flex: 1;
}

.format-ext {
    color: var(--gray-color);
    font-family: monospace;
    margin: 0 1rem;
}

.compression-ratio {
    color: var(--primary-color);
    font-weight: 500;
    min-width: 50px;
    text-align: right;
}

/* Deployment Card Styles */
.deployment-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
    height: 100%;
}

.deployment-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.deployment-card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.deployment-card p {
    color: var(--gray-color);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.deployment-card .btn {
    margin-top: auto;
}

/* Paper Card Styles */
.paper-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.paper-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.paper-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.paper-card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.paper-card p {
    color: var(--gray-color);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.paper-card .btn {
    margin-top: auto;
}

/* Deployment Grid */
.deployment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

/* Papers Grid */
.papers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

/* Example Grid */
.example-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

/* Standards Grid */
.standards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.standards-grid .standard-item {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(226, 232, 240, 0.6);
    text-align: center;
}

.standards-grid .standard-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.standards-grid .standard-item h4 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.standards-grid .standard-item p {
    color: var(--gray-color);
    font-size: 0.9rem;
}

/* Footer Styles */
footer {
    background: var(--secondary-color);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.features-grid .feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
    text-align: center;
}

.features-grid .feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.features-grid .feature-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.features-grid .feature-card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.features-grid .feature-card p {
    color: var(--gray-color);
    line-height: 1.6;
}

/* Section Styles */
.section {
    padding: 4rem 0;
}

.section:nth-child(even) {
    background: rgba(248, 250, 252, 0.5);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text {
        padding-right: 0;
        margin-bottom: 2rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .statistics {
        flex-direction: column;
        gap: 1rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-btns {
        justify-content: center;
    }
    
    .nav-links {
        display: none;
    }
}

/* Language-specific responsive adjustments */
@media (max-width: 768px) {
    html[lang="ar"] .hero-text {
        text-align: right;
    }
    
    html[lang="ar"] .statistics {
        direction: rtl;
    }
    
    html[lang="ar"] .footer-content {
        direction: rtl;
    }
}

/* 平板端优化 (768px - 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .formats-grid,
    .optimization-features {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.5rem;
    }
    
    .system-performance {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
    
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .compression-levels {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-stack {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .compatibility-table-wrapper {
        margin: 2rem -1.5rem;
        padding: 0 1.5rem;
    }
    
    /* 平板端导航栏优化 */
    .navbar {
        height: 70px;
        padding: 0.75rem 0;
    }
    
    .navbar .container {
        height: 55px;
        min-height: 55px;
        overflow: hidden;
    }
    
    .navbar-right {
        gap: 0.75rem;
        height: 55px;
        min-height: 55px;
    }
    
    .navbar-right .btn {
        padding: 0.5rem 1.5rem;
        font-size: 0.9rem;
        height: 42px;
        min-height: 42px;
    }
    
    .logo-text {
        font-size: 1.4rem;
        line-height: 1.2;
    }
    
    .logo-icon {
        width: 55px;
        height: 55px;
    }
    
    .logo {
        height: 55px;
        display: flex;
        align-items: center;
    }
    
    /* 西方语言导航栏在平板端的调整 */
    html[lang="en"] .nav-links a,
    html[lang="es"] .nav-links a,
    html[lang="de"] .nav-links a,
    html[lang="fr"] .nav-links a,
    html[lang="ru"] .nav-links a {
        font-size: 0.85rem;
        padding: 0.5rem 0.6rem;
    }
    
    html[lang="ar"] .nav-links a {
        font-size: 0.85rem;
        padding: 0.5rem 0.6rem;
    }
}

/* 超小屏幕优化 (小于480px) */
@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .formats-grid,
    .optimization-features {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .format-category,
    .feature-card {
        padding: 1.5rem;
    }
    
    .page-header {
        padding: 1.5rem 1rem;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .content-section {
        padding: 2rem 1.5rem;
        margin-bottom: 2rem;
    }
    
    .compatibility-table-wrapper {
        margin: 2rem -0.75rem;
        padding: 0 0.75rem;
    }
    
    /* Logo在超小屏幕的优化 */
    .logo-text {
        font-size: 1.2rem;
    }
    
    .navbar-right .btn {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
        min-width: auto;
    }
    
    /* 阿拉伯语RTL支持在移动端 */
    html[lang="ar"] .mobile-menu-toggle {
        margin-left: 1rem;
        margin-right: 0;
    }
    
    html[lang="ar"] .nav-links {
        right: 0;
        left: auto;
    }
    
    html[lang="ar"] .compatibility-table-wrapper {
        direction: ltr;
        margin-right: -0.75rem;
        margin-left: 0;
    }
}

/* 通用移动端溢出处理优化 */
@media (max-width: 768px) {
    /* 防止所有表格溢出 */
    table {
        max-width: 100%;
        overflow-x: auto;
        display: block;
        white-space: nowrap;
    }
    
    /* 确保所有网格不会溢出 */
    .values-grid,
    .compression-levels,
    .tech-stack,
    .tech-innovations,
    .system-performance {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    /* 防止内容溢出的通用设置 */
    * {
        max-width: 100%;
        box-sizing: border-box;
    }
    
    img {
        max-width: 100%;
        height: auto;
    }
    
    /* 处理长文本 */
    .format-name,
    .compression-ratio {
        word-wrap: break-word;
        word-break: break-word;
    }
}

/* Integration Page Styles */
.integration-options {
    padding: 4rem 0;
    background: rgba(248, 250, 252, 0.5);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.section-title p {
    color: var(--gray-color);
    font-size: 1.1rem;
}

.integration-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.integration-card {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
    text-align: center;
}

.integration-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.integration-icon {
    margin-bottom: 2rem;
}

.integration-icon i {
    font-size: 3rem;
    color: var(--primary-color);
    background: rgba(26, 86, 219, 0.1);
    padding: 1.5rem;
    border-radius: 50%;
    display: inline-block;
}

.integration-card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.integration-card p {
    color: var(--gray-color);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* API Documentation Styles */
.api-documentation {
    padding: 4rem 0;
}

.api-endpoints {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.endpoint-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
}

.endpoint-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.endpoint-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.endpoint {
    background: #1e293b;
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.method {
    background: var(--success-color);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.8rem;
}

.url {
    color: #10b981;
    font-family: 'Courier New', monospace;
    font-weight: 500;
}

/* Language-specific integration adjustments */
html[lang="en"] .integration-card h3,
html[lang="es"] .integration-card h3,
html[lang="de"] .integration-card h3,
html[lang="fr"] .integration-card h3,
html[lang="ru"] .integration-card h3 {
    font-size: 1.3rem;
}

html[lang="ar"] .integration-card h3 {
    font-size: 1.3rem;
}

/* Missing styles for multilingual pages */

/* Use Cases styles */
.use-cases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.use-case-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.use-case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.1);
}

.use-case-card h3 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.use-case-card h3 i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.use-case-card p {
    color: var(--gray-color);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Threat Grid styles */
.threat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.threat-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.threat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(26, 86, 219, 0.1);
}

.threat-card h3 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.threat-card h3 i {
    font-size: 1.3rem;
    color: var(--accent-color);
}

.threat-card p {
    color: var(--gray-color);
    line-height: 1.5;
    font-size: 0.9rem;
}

/* Language-specific adjustments for threat cards */
html[lang="ar"] .threat-card h3 {
    font-size: 1rem;
    text-align: right;
    justify-content: flex-end;
}

html[lang="ar"] .threat-card p {
    text-align: right;
    font-size: 0.85rem;
}

html[lang="ja"] .threat-card h3,
html[lang="ko"] .threat-card h3 {
    font-size: 1rem;
}

html[lang="ja"] .threat-card p,
html[lang="ko"] .threat-card p {
    font-size: 0.85rem;
}

html[lang="de"] .threat-card h3,
html[lang="fr"] .threat-card h3 {
    font-size: 1rem;
}

html[lang="de"] .threat-card p,
html[lang="fr"] .threat-card p {
    font-size: 0.85rem;
}

/* Language-specific adjustments for use case cards */
html[lang="ar"] .use-case-card h3 {
    font-size: 1.1rem;
    text-align: right;
    justify-content: flex-end;
}

html[lang="ar"] .use-case-card p {
    text-align: right;
    font-size: 0.9rem;
}

html[lang="ja"] .use-case-card h3,
html[lang="ko"] .use-case-card h3 {
    font-size: 1.1rem;
}

html[lang="ja"] .use-case-card p,
html[lang="ko"] .use-case-card p {
    font-size: 0.9rem;
}

html[lang="de"] .use-case-card h3,
html[lang="fr"] .use-case-card h3 {
    font-size: 1.1rem;
}

html[lang="de"] .use-case-card p,
html[lang="fr"] .use-case-card p {
    font-size: 0.9rem;
}

/* Audit Process styles */
.audit-process {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
}

.audit-step {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.audit-step:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(26, 86, 219, 0.1);
}

/* Step Number styles */
.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-weight: bold;
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* Step Content styles */
.step-content {
    flex: 1;
}

.step-content h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.step-content p {
    color: var(--gray-color);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Additional Certification styles */
.cert-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    margin-bottom: 1rem;
    transition: var(--transition);
}

.cert-item:hover {
    background: white;
    box-shadow: var(--shadow);
}

.cert-logo {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-color);
    border-radius: 8px;
    font-weight: bold;
    color: var(--primary-color);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.cert-status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cert-active {
    background: var(--success-color);
    color: white;
}

.cert-pending {
    background: #f59e0b;
    color: white;
}

/* Language-specific adjustments for audit steps */
html[lang="ar"] .audit-step {
    flex-direction: row-reverse;
}

html[lang="ar"] .step-content h3 {
    text-align: right;
}

html[lang="ar"] .step-content p {
    text-align: right;
}

html[lang="ar"] .cert-item {
    flex-direction: row-reverse;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .use-cases {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .threat-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .use-case-card,
    .threat-card {
        padding: 1.5rem;
    }
}



/* API Details Styling */
.api-details {
    margin-top: 2rem;
}

.api-endpoint {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.api-endpoint:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.api-endpoint h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-weight: 600;
}

.method {
    background: var(--accent-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.api-endpoint > p {
    margin-bottom: 1rem;
    color: var(--text-color);
    line-height: 1.6;
}

.params, .response {
    margin: 1rem 0;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.params strong, .response strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-weight: 600;
}

.params ul {
    margin: 0;
    padding-left: 1.5rem;
}

.params li {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.params code {
    background: #f1f5f9;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.875rem;
    color: #e11d48;
}

.response code {
    display: block;
    background: #1e293b;
    color: #e2e8f0;
    padding: 1rem;
    border-radius: 6px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.875rem;
    overflow-x: auto;
    white-space: pre-wrap;
}