/* ==========================================
   HyperLiquid 官方网站 - 主样式表
   ========================================== */

/* ============ 变量定义 ============ */
:root {
    /* 颜色系统 */
    --primary: #00D9FF;
    --primary-dark: #00C9E0;
    --secondary: #00FF88;
    --accent: #FFD700;
    --accent-light: #FFC000;
    --bg-dark: #0A1428;
    --bg-darker: #0D1B2A;
    --bg-light: #1A2A3F;
    --text-primary: #FFFFFF;
    --text-secondary: #B0C4DE;
    --text-muted: #7A8BA3;
    --border-color: rgba(0, 217, 255, 0.1);
    --success: #00FF88;
    --warning: #FFD700;
    --error: #FF6B6B;

    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
    --spacing-2xl: 2.5rem;
    --spacing-3xl: 3rem;

    /* 排版 */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "PingFang SC", "Noto Sans CJK SC", sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* 动画 */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;

    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 217, 255, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 217, 255, 0.2);
    --shadow-xl: 0 20px 48px rgba(0, 217, 255, 0.25);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-dark);
    overflow-x: hidden;
}

/* ============ 通用元素 ============ */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

a:hover {
    color: var(--primary-dark);
}

/* ============ 导航栏 ============ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: rgba(10, 20, 40, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 1000;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 20, 40, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    cursor: pointer;
}

.logo-img {
    height: 40px;
    width: auto;
}

.brand-name {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: all var(--transition-base);
    position: relative;
    padding-bottom: 5px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width var(--transition-base);
}

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

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

.nav-link.active {
    color: var(--primary);
    font-weight: 600;
}

.nav-link.active::after {
    width: 100%;
}

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

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--primary);
    transition: all var(--transition-base);
    border-radius: 2px;
}

/* ============ Hero 首屏 ============ */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 70px;
    min-height: 600px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

/* 悬浮发光球体 */
.hero-bg::before,
.hero-bg::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    pointer-events: none;
}

.hero-bg::before {
    width: 600px;
    height: 600px;
    background: var(--primary);
    top: -200px;
    right: -100px;
}

.hero-bg::after {
    width: 400px;
    height: 400px;
    background: var(--secondary);
    bottom: -100px;
    left: -100px;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    animation: zoomIn 0.8s ease-out forwards;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg,
        rgba(10, 20, 40, 0.3) 0%,
        rgba(10, 20, 40, 0.5) 50%,
        rgba(10, 20, 40, 0.7) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary), var(--secondary), var(--primary-dark), var(--primary));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out 0.3s backwards, gradientShift 8s linear infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% center; }
    50% { background-position: 100% center; }
    100% { background-position: 0% center; }
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.5;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.5s backwards;
    margin-bottom: var(--spacing-2xl);
}

/* ============ Hero 统计数据行 ============ */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-lg) 0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(0, 217, 255, 0.06);
    border: 1px solid rgba(0, 217, 255, 0.15);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.hero-stat:hover {
    border-color: rgba(0, 217, 255, 0.3);
    background: rgba(0, 217, 255, 0.1);
}

.stat-val {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* ============ 信任徽章区 ============ */
.trust-bar {
    background: linear-gradient(180deg, rgba(0,217,255,0.06) 0%, rgba(0,255,136,0.03) 100%);
    border-top: 1px solid rgba(0,217,255,0.1);
    border-bottom: 1px solid rgba(0,217,255,0.1);
    padding: var(--spacing-lg) 0;
}

.trust-bar {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: 100%;
    overflow-x: auto;
}

.trust-item {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(0,217,255,0.08);
    border: 1px solid rgba(0,217,255,0.2);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    white-space: nowrap;
    transition: all var(--transition-base);
}

.trust-item:hover {
    background: rgba(0,217,255,0.15);
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* ============ 按钮样式 ============ */
.btn {
    padding: 14px 40px;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-transform: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--bg-dark);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.4);
}

/* 按钮扫光效果 */
.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60px;
    height: 100%;
    background: rgba(255, 255, 255, 0.25);
    transform: skewX(-20deg);
    transition: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    box-shadow: 0 0 30px rgba(0, 217, 255, 0.6);
    transform: translateY(-2px);
}

.btn-primary:hover::after {
    animation: shine 0.6s forwards;
}

@keyframes shine {
    to {
        left: 120%;
    }
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: rgba(0, 217, 255, 0.1);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
    transform: translateY(-2px);
}

/* ============ 滚动提示 ============ */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    animation: bounce 2s infinite;
    z-index: 2;
}

.scroll-indicator span {
    font-size: var(--font-size-sm);
    letter-spacing: 1px;
}

/* ============ 通用区块样式 ============ */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.content-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ============ 品牌理念区 ============ */
.philosophy {
    position: relative;
    padding: var(--spacing-2xl) 0;
    overflow: hidden;
}

/* 品牌理念背景图已删除 */

.philosophy-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    position: relative;
    z-index: 2;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.philosophy-card {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.philosophy-card:hover {
    background: rgba(0, 217, 255, 0.08);
    border-color: rgba(0, 217, 255, 0.3);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-dark);
    margin-bottom: var(--spacing-md);
}

.philosophy-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--primary);
}

.philosophy-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============ 通用节区设置 ============ */
section {
    padding: var(--spacing-2xl) 0;
    position: relative;
    overflow: hidden;
}

.platform,
.market-section,
.security-section,
.framework-section,
.scenarios-section,
.faq-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

/* 点阵背景装饰 */
.philosophy::before,
.capabilities::before,
.platform::before,
.market-section::before,
.security-section::before,
.framework-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(0,217,255,0.06) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
}

/* ============ 章节标题增强 ============ */
.section-header {
    position: relative;
    z-index: 1;
}

.section-title {
    position: relative;
    margin-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
    margin: 1rem auto 0;
    box-shadow: 0 0 15px rgba(0,217,255,0.5);
}

/* ============ 通用卡片 Hover 增强 ============ */
.feature,
.platform-item,
.scenario,
.sec-feature,
.market-card {
    position: relative;
    transition: all 0.3s ease;
}

.feature:hover,
.platform-item:hover,
.scenario:hover,
.sec-feature:hover,
.market-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 32px rgba(0,217,255,0.2);
    transform: translateY(-6px);
}

/* ============ 核心能力区 ============ */
.capabilities {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

.capabilities-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* 2x2 网格布局 */
.capabilities-grid-2x2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.capability-card-large {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.capability-card-large:hover {
    border-color: rgba(0, 217, 255, 0.3);
    background: rgba(0, 217, 255, 0.05);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.capability-image-large {
    width: 100%;
    height: 450px;
    overflow: hidden;
    background: var(--bg-light);
}

.capability-image-large img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    display: block;
}

.capability-card-large:hover .capability-image-large img {
    transform: scale(1.02);
    transition: transform var(--transition-base);
}

.capability-info {
    padding: var(--spacing-lg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.capability-info h3 {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.capability-info p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin-top: auto;
}

.feature-list li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: 600;
}

/* 进阶能力区 */
.capabilities-advanced {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--border-color);
}

.advanced-title {
    font-size: var(--font-size-2xl);
    color: var(--primary);
    margin-bottom: var(--spacing-2xl);
    text-align: center;
    font-weight: 600;
}

.advanced-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
}

.advanced-item {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.advanced-item:hover {
    background: rgba(0, 217, 255, 0.08);
    border-color: var(--primary);
    transform: translateY(-3px);
}

.advanced-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.advanced-item h4 {
    font-size: var(--font-size-base);
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.advanced-item p {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    line-height: 1.6;
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.capability-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.capability-item:hover {
    border-color: rgba(0, 217, 255, 0.3);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.capability-image {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
    background: var(--bg-light);
}

.capability-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.capability-item:hover .capability-image img {
    transform: scale(1.05);
}

.capability-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1), rgba(0, 255, 136, 0.1));
    color: var(--primary);
}

.capability-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 20, 40, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.capability-item:hover .capability-overlay {
    opacity: 1;
}

.overlay-text {
    color: var(--primary);
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.capability-content {
    padding: var(--spacing-lg);
}

.capability-content h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--primary);
}

.capability-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    font-size: var(--font-size-sm);
}

.capability-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0, 217, 255, 0.1);
    border: 1px solid rgba(0, 217, 255, 0.3);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    color: var(--primary);
    transition: all var(--transition-base);
}

.tag:hover {
    background: rgba(0, 217, 255, 0.2);
    border-color: var(--primary);
}

/* ============ 生态区 ============ */
.ecosystem {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-dark);
}

.ecosystem-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.market-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.market-item {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.05), rgba(0, 255, 136, 0.05));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.market-item:hover {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1), rgba(0, 255, 136, 0.1));
    border-color: var(--primary);
    transform: translateY(-3px);
}

.market-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.market-stat {
    width: 100%;
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.suffix, .unit-text {
    font-size: var(--font-size-lg);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.stat-desc {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.ecosystem-chart-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
}

.chart-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
}

.ecosystem-details h3 {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
}

.details-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.detail-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.detail-item:hover {
    background: rgba(0, 217, 255, 0.08);
    transform: translateX(5px);
}

.detail-color {
    width: 4px;
    border-radius: 2px;
    flex-shrink: 0;
}

.detail-text {
    flex-grow: 1;
}

.detail-label {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.detail-desc {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.market-trend {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
}

.market-trend h3 {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
}

.trend-image {
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.trend-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

.trend-desc {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

.ecosystem-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.stat-card {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.05), rgba(0, 255, 136, 0.05));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.stat-card:hover {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1), rgba(0, 255, 136, 0.1));
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.plus, .unit {
    font-size: var(--font-size-2xl);
}

.percent-symbol {
    font-size: var(--font-size-4xl);
    color: var(--accent);
}

.stat-label {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.ecosystem-chart {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
}

.chart-title {
    text-align: center;
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-lg);
    color: var(--primary);
}

.chart-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.chart-image {
    max-width: 400px;
    width: 100%;
}

.chart-legend {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    flex: 1;
    min-width: 250px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-md);
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.legend-item span:last-child {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ============ 安全与生态区 ============ */
.security {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
}

.security-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.security-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    margin-top: var(--spacing-2xl);
}

.security-showcase {
    margin-top: var(--spacing-lg);
}

.showcase-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.showcase-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.showcase-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.showcase-item .img-container {
    width: 100%;
    position: relative;
}

.showcase-item .img-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

.item-title {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(10, 20, 40, 0.9);
    color: var(--primary);
    padding: var(--spacing-md);
    text-align: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.security-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.security-feature-item {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.security-feature-item:hover {
    background: rgba(0, 217, 255, 0.08);
    border-color: var(--primary);
    transform: translateX(5px);
}

.feature-icon {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-sm);
}

.security-feature-item h3 {
    font-size: var(--font-size-base);
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.security-feature-item p {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    line-height: 1.7;
}

.security-card {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
    text-align: center;
}

.security-card:hover {
    background: rgba(0, 217, 255, 0.08);
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.security-card .card-icon {
    margin: 0 auto var(--spacing-md);
}

.security-card h3 {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.security-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============ 平台系统展示 ============ */
.platform {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
}

.platform-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.product-module {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.product-module:hover {
    background: rgba(0, 217, 255, 0.05);
    border-color: rgba(0, 217, 255, 0.2);
}

.product-module.alternate {
    grid-template-columns: 1fr 1fr;
}

.product-module.alternate .module-image {
    order: -1;
}

.module-content h3 {
    font-size: var(--font-size-2xl);
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.module-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    font-size: var(--font-size-base);
}

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

.module-features li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    color: var(--text-secondary);
    position: relative;
}

.module-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: 600;
}

.module-image {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: var(--bg-light);
}

.module-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.product-module:hover .module-image img {
    transform: scale(1.05);
}

/* ============ 方法框架区 ============ */
.framework {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

.framework-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.framework-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    margin-top: var(--spacing-2xl);
}

.framework-visual {
    display: flex;
    flex-direction: column;
}

.framework-visual .img-container {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

.visual-caption {
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-style: italic;
}

.framework-process {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.process-item {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.process-item:hover {
    background: rgba(0, 217, 255, 0.08);
    border-color: var(--primary);
    transform: translateX(5px);
}

.process-step {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    min-width: 60px;
    display: flex;
    align-items: center;
}

.process-info {
    flex-grow: 1;
}

.process-info h4 {
    font-size: var(--font-size-base);
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.process-info p {
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    line-height: 1.6;
}

.process-arrow {
    text-align: center;
    color: var(--secondary);
    font-size: var(--font-size-lg);
    margin: -0.5rem 0;
    opacity: 0.5;
}

.framework-note {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background: rgba(0, 217, 255, 0.05);
    border: 1px solid rgba(0, 217, 255, 0.2);
    border-radius: var(--radius-lg);
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

.framework-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    align-items: stretch;
}

.framework-step {
    position: relative;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
}

.framework-step:hover {
    background: rgba(0, 217, 255, 0.08);
    border-color: var(--primary);
    transform: translateY(-3px);
}

.step-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.step-content h3 {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.step-content p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.framework-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

/* ============ 应用场景区 ============ */
.scenarios {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-dark);
}

.scenarios-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.scenario-card {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.05), rgba(0, 255, 136, 0.05));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    position: relative;
}

.scenario-card:hover {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1), rgba(0, 255, 136, 0.1));
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.scenario-number {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-lg);
    color: var(--bg-dark);
    margin-bottom: var(--spacing-md);
}

.scenario-card h3 {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.scenario-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    font-size: var(--font-size-sm);
}

.scenario-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.detail-item {
    font-size: var(--font-size-sm);
    color: var(--secondary);
}

/* ============ 知识支持区 ============ */
.knowledge {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
}

.knowledge-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.knowledge-tabs {
    margin-top: var(--spacing-2xl);
}

.tabs-header {
    display: flex;
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.tab-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 600;
    transition: all var(--transition-base);
}

.tab-btn:hover {
    color: var(--primary);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tabs-content {
    position: relative;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-pane.active {
    display: block;
}

.knowledge-article {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.knowledge-article h3 {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.knowledge-article p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.article-details {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.article-details h4 {
    color: var(--secondary);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-base);
}

.article-details ul {
    list-style: none;
    padding: 0;
}

.article-details li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    color: var(--text-secondary);
    position: relative;
    font-size: var(--font-size-sm);
}

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

/* ============ FAQ 区 ============ */
.faq {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-dark);
}

.faq-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.faq-items {
    margin-top: var(--spacing-2xl);
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item.active {
    background: rgba(0, 217, 255, 0.05);
    border-color: var(--primary);
}

.faq-question {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.02);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-base);
}

.faq-item.active .faq-question {
    background: rgba(0, 217, 255, 0.08);
}

.faq-question h3 {
    margin: 0;
    font-size: var(--font-size-base);
    color: var(--text-primary);
    font-weight: 600;
    flex: 1;
}

.faq-toggle {
    display: flex;
    gap: 3px;
    flex-shrink: 0;
}

.faq-toggle span {
    width: 3px;
    height: 12px;
    background: var(--primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.faq-item.active .faq-toggle span {
    width: 12px;
    height: 3px;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: var(--font-size-sm);
}

.faq-answer ul {
    list-style: none;
    padding-left: 0;
    margin-left: 0;
}

.faq-answer li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.faq-answer li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary);
}

/* ============ 页脚 ============ */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    position: relative;
}

/* 顶部装饰线 */
.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-base);
}

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

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: var(--text-secondary);
    position: relative;
    display: inline-block;
    transition: color var(--transition-base);
}

.footer-section a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--primary);
    transition: width 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary);
}

.footer-section a:hover::after {
    width: 100%;
}

.contact-info {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: var(--font-size-sm);
}

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

/* ============ 页脚新设计 ============ */
.footer-top-line {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    margin-bottom: var(--spacing-2xl);
}

.footer-main {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--border-color);
}

.footer-brand {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.footer-brand img {
    height: 50px;
    width: auto;
    flex-shrink: 0;
}

.footer-brand h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary);
    margin: 0 0 var(--spacing-xs);
}

.footer-brand p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

.footer-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
}

.nav-col h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--primary);
    margin: 0 0 var(--spacing-md);
}

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

.nav-col li {
    margin-bottom: var(--spacing-sm);
}

.nav-col a {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary);
    font-weight: 600;
}

.footer-logo-img {
    height: 30px;
    width: auto;
}

.footer-legal {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    font-size: var(--font-size-sm);
    justify-content: center;
    padding: var(--spacing-lg) 0;
}

.footer-legal a {
    color: var(--text-secondary);
    position: relative;
    transition: color var(--transition-base);
}

.footer-legal a:hover {
    color: var(--primary);
}

.footer-legal a:not(:last-child)::after {
    content: '|';
    margin: 0 var(--spacing-sm);
    color: var(--text-muted);
}

.divider {
    color: var(--text-muted);
}

.footer-copyright {
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-size-xs);
    flex: 1;
    min-width: 200px;
}

/* ============ 返回顶部按钮 ============ */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
    color: var(--bg-dark);
    box-shadow: var(--shadow-lg);
}

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

.scroll-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* ============ 图片容器 ============ */
.image-box {
    width: 100%;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: transparent;
    border-radius: 0;
    overflow: hidden;
    margin: 0;
    padding: 0;
    border: none;
}

.image-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    display: block;
}

.image-box.tall {
    min-height: 400px;
}

.image-box.small {
    max-height: 200px;
}

/* ============ 核心能力 - 手机网格 ============ */
.phones-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.phone-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-sm);
}

.phone-frame {
    width: 100%;
    aspect-ratio: 9/16;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: linear-gradient(135deg, #0D1B2A 0%, #1A2A3F 100%);
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    border: 2px solid rgba(0,217,255,0.3);
    box-shadow: 0 0 30px rgba(0,217,255,0.1), inset 0 0 20px rgba(0,217,255,0.03);
    transition: all 0.4s ease;
}

/* 手机顶部摄像头装饰 */
.phone-frame::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 6px;
    background: rgba(0,217,255,0.3);
    border-radius: 3px;
    z-index: 2;
}

.phone-item:hover .phone-frame {
    border-color: var(--primary);
    box-shadow: 0 0 40px rgba(0,217,255,0.3), 0 20px 60px rgba(0,0,0,0.5);
    transform: translateY(-8px) scale(1.02);
}

.phone-frame img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

.phone-item h3 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin: var(--spacing-sm) 0 0;
}

.phone-item p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

/* ============ 能力特性网格 ============ */
.capabilities-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-2xl) 0;
}

.feature {
    padding: var(--spacing-md);
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.feature:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(0,217,255,0.1), rgba(0,255,136,0.05));
    border: 1px solid rgba(0,217,255,0.2);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
    font-size: 1.8rem;
    transition: all 0.3s ease;
}

.feature:hover .feature-icon {
    background: linear-gradient(135deg, rgba(0,217,255,0.2), rgba(0,255,136,0.1));
    border-color: var(--primary);
    box-shadow: 0 0 20px rgba(0,217,255,0.2);
    transform: scale(1.1);
}

.feature h4 {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin: var(--spacing-sm) 0;
}

.feature p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

/* ============ 平台项目网格 ============ */
.platform-items {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.platform-item {
    position: relative;
    padding: var(--spacing-md);
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

/* 左边框悬停效果 */
.platform-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    border-radius: 3px 0 0 3px;
    opacity: 0;
    transition: opacity 0.3s;
}

.platform-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

.platform-item:hover::before {
    opacity: 1;
}

/* 平台图标 */
.platform-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.platform-item h3 {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.platform-item p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

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

.feature-list li {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    padding: var(--spacing-xs) 0 var(--spacing-xs) 20px;
    border-top: 1px solid var(--border-color);
    position: relative;
}

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

.feature-list li:first-child {
    border-top: none;
    padding-top: 0;
}

/* ============ 市场展示网格 ============ */
.market-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.market-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.market-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 32px rgba(0,217,255,0.15);
    transform: translateY(-4px);
}

.market-card h3 {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin: 0;
}

.market-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

.market-card .image-box {
    aspect-ratio: 1 / 1;
}

/* ============ 市场全宽展示 ============ */
/* 市场趋势卡片已统一为普通 .market-card 样式 */

/* ============ 安全与生态 ============ */
.security-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.security-image {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.security-image h3 {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin: 0;
}

.security-image .image-box {
    aspect-ratio: 1 / 1;
}

/* ============ 安全特性 ============ */
.security-features {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-md);
}

.sec-feature {
    padding: var(--spacing-md);
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.sec-feature:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
}

.sec-feature h4 {
    font-size: var(--font-size-base);
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.sec-feature p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

/* ============ 安全认证徽章 ============ */
.security-certs {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.cert-badge {
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(0,217,255,0.12), rgba(0,255,136,0.06));
    border: 1px solid rgba(0,217,255,0.25);
    border-radius: var(--radius-lg);
    text-align: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.cert-badge:hover {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(0,217,255,0.2), rgba(0,255,136,0.1));
    transform: translateY(-3px);
    box-shadow: 0 0 20px rgba(0,217,255,0.2);
}

/* ============ 方法框架 ============ */
/* ============ 方法框架 - 新设计 ============ */
.framework-steps-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-lg);
    margin: var(--spacing-2xl) 0;
    padding: var(--spacing-2xl) 0;
    border-bottom: 1px solid var(--border-color);
}

.framework-image-showcase {
    display: flex;
    justify-content: center;
    margin: var(--spacing-2xl) 0;
}

.framework-img {
    max-height: 350px;
    border: none !important;
    border-radius: 0;
    overflow: hidden;
    background-color: transparent !important;
}

/* 旧的框架布局保留备用 */
.framework-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
    margin: var(--spacing-lg) 0;
}

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

.framework-image .image-box {
    width: 100%;
    aspect-ratio: 9/16;
}

.framework-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    justify-content: center;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.step-num {
    width: 56px;
    height: 56px;
    min-width: 56px;
    background: linear-gradient(135deg, rgba(0,217,255,0.15), rgba(0,255,136,0.08));
    border: 2px solid rgba(0,217,255,0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
    box-shadow: 0 0 20px rgba(0,217,255,0.15);
}

.step-text h4 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin: 0 0 var(--spacing-xs);
}

.step-text p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

.arrow {
    text-align: left;
    padding-left: 20px;
    font-size: 1.5rem;
    color: var(--primary);
    opacity: 0.7;
}

/* ============ 应用场景 ============ */
.scenarios-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
    margin: var(--spacing-lg) 0;
}

.scenarios-text {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.scenario {
    position: relative;
    padding: var(--spacing-md);
    padding-top: var(--spacing-lg);
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

/* 场景序号 */
.scenario-num {
    position: absolute;
    top: -1px;
    right: var(--spacing-md);
    font-size: 2.5rem;
    font-weight: 900;
    color: rgba(0,217,255,0.08);
    line-height: 1;
    pointer-events: none;
}

.scenario:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0,217,255,0.2);
}

.scenario h3 {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.scenario p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

.scenarios-image {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.scenarios-image h3 {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin: 0;
}

.scenarios-image .image-box {
    aspect-ratio: 1 / 1;
}

/* ============ FAQ网格 ============ */
/* ============ FAQ - 单列列表设计 ============ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin: var(--spacing-2xl) 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.faq-item {
    padding: 0;
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    border-left-width: 3px;
    cursor: pointer;
    transition: all var(--transition-base);
    overflow: hidden;
}

/* 奇数项：cyan 蓝色左边框 */
.faq-item:nth-child(odd) {
    border-left-color: var(--primary);
}

/* 偶数项：green 绿色左边框 */
.faq-item:nth-child(even) {
    border-left-color: var(--secondary);
}

.faq-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.faq-item.active {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(0,217,255,0.06), rgba(0,255,136,0.03));
}

.faq-question {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.faq-q-text {
    flex: 1;
}

.faq-toggle {
    font-size: 0.875rem;
    color: var(--primary);
    transition: transform var(--transition-base);
    flex-shrink: 0;
}

.faq-item.active .faq-toggle {
    transform: rotateZ(180deg);
}

.faq-question:hover {
    color: var(--primary);
}

/* 保留旧样式兼容性 */
.faq-question::after {
    content: '';
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
    padding: 0 var(--spacing-md);
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 var(--spacing-md) var(--spacing-md);
}

.faq-answer p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ============ 动画 ============ */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes zoomIn {
    from {
        transform: scale(1.1);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

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

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

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

/* ============ 工具类 ============ */
.text-center {
    text-align: center;
}

.mt {
    margin-top: var(--spacing-lg);
}

.mb {
    margin-bottom: var(--spacing-lg);
}

.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}