/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 深色主题配色 - 参考 test.html */
    --primary-color: #7c5cff;
    --primary-dark: #6b4eff;
    --primary-light: #8d6fff;
    --secondary-color: #00d3ff;
    --accent-color: #35d07f;
    --accent-warn: #ffcc66;
    --text-primary: #e9ecf6;
    --text-secondary: #b9c0d6;
    --text-muted: #b9c0d6;
    --bg-primary: #0b1020;
    --bg-secondary: #0f1730;
    --bg-tertiary: #0c132a;
    --bg-dark: #0a0f1e;
    --bg-card: #0f1730;
    --bg-card2: #0c132a;
    --border-color: rgba(255, 255, 255, 0.12);
    --border-hover: rgba(255, 255, 255, 0.22);
    --shadow-sm: 0 10px 30px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 15px 40px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.45);
    --shadow-xl: 0 25px 60px rgba(0, 0, 0, 0.5);
    --shadow-primary: 0 12px 40px rgba(124, 92, 255, 0.28);
    --radius: 18px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', 'Roboto', 
        'PingFang SC', 'Noto Sans CJK SC', 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.55;
    color: var(--text-primary);
    background: 
        radial-gradient(1200px 600px at 20% -10%, rgba(124, 92, 255, 0.45), transparent 60%),
        radial-gradient(900px 500px at 90% 10%, rgba(0, 211, 255, 0.25), transparent 55%),
        radial-gradient(900px 500px at 70% 90%, rgba(53, 208, 127, 0.18), transparent 55%),
        var(--bg-primary);
    overflow-x: hidden;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 - 深色主题 */
.navbar {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(11, 16, 32, 0.55);
    backdrop-filter: blur(10px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: all 0.3s ease;
}

/* 面包屑导航 */
.breadcrumb {
    margin-top: 70px;
    padding: 1rem 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb ol {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.breadcrumb li {
    display: flex;
    align-items: center;
}

.breadcrumb li:not(:last-child)::after {
    content: '/';
    margin-left: 0.5rem;
    color: var(--text-secondary);
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: opacity 0.3s ease;
    gap: 0.5rem;
    min-height: 40px;
}

.logo-link:hover {
    opacity: 0.8;
}

.logo-img {
    height: 40px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    display: none; /* 默认隐藏，由JS控制显示 */
}

.logo-text {
    display: flex; /* 默认显示文字logo */
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
    justify-content: center;
}

.logo-name {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: 0.3px;
    line-height: 1.2;
}

.logo-tagline {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: 1px;
    line-height: 1.2;
    white-space: nowrap;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.2rem;
    align-items: center;
    flex-wrap: nowrap;
}

.nav-link {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.15s ease;
    position: relative;
    padding: 0.5rem 0.625rem;
    border-radius: 0.625rem;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 0;
    border: none;
    background: transparent;
}

.nav-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

.phone-icon {
    font-size: 1.125rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
}

.phone-number {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
}

.nav-demo-btn {
    padding: 8px 20px;
    font-size: 0.875rem;
    white-space: nowrap;
    min-width: auto;
    line-height: 1.4;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: 0.2px;
    text-decoration: none;
    transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.22);
}

.btn-primary {
    border-color: transparent;
    background: linear-gradient(90deg, rgba(124, 92, 255, 1), rgba(0, 211, 255, 1));
    color: #06101a;
    box-shadow: 0 12px 40px rgba(124, 92, 255, 0.28);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary:hover {
    transform: translateY(-2px);
    background: linear-gradient(90deg, rgba(144, 112, 255, 1), rgba(20, 231, 255, 1));
    filter: brightness(1.15) saturate(1.2);
    box-shadow: 0 20px 60px rgba(124, 92, 255, 0.5), 0 0 30px rgba(0, 211, 255, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.22);
}

/* 英雄区域 - 轮播样式 */
.hero {
    position: relative;
    overflow: hidden;
    min-height: 600px;
    color: white;
    padding: 0 !important;
}

/* 浅色背景英雄区域 - 使用SVG背景图 */
.hero-light {
    background: url('images/hero-bg.svg') center/cover no-repeat;
    background-color: transparent; /* 备用背景色 */
    color: var(--text-primary);
    padding: 140px 0 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-light .hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

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

.hero-light .gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

.hero-light .hero-subtitle {
    color: var(--text-muted);
    opacity: 1;
}

.hero-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease-in-out, visibility 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 600px;
}

.hero-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    z-index: 0;
}

.hero-slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 1;
}

.hero-slide .container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 600px;
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 0.8s ease;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--text-primary), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* MCP页面Hero区域的渐变文字更亮 */
.mcp-hero-content .gradient-text {
    background: linear-gradient(135deg, #ffffff, var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: brightness(1.1);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

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

/* 英雄区域按钮样式 - 深色主题 */
.hero .btn-primary {
    border-color: transparent;
    background: linear-gradient(90deg, rgba(124, 92, 255, 1), rgba(0, 211, 255, 1));
    color: #06101a;
    box-shadow: 0 12px 40px rgba(124, 92, 255, 0.28);
    padding: 12px 16px;
    font-size: 1rem;
    transition: transform 0.15s ease, filter 0.15s ease;
}

.hero .btn-primary:hover {
    transform: translateY(-2px);
    background: linear-gradient(90deg, rgba(144, 112, 255, 1), rgba(20, 231, 255, 1));
    filter: brightness(1.15) saturate(1.2);
    box-shadow: 0 20px 60px rgba(124, 92, 255, 0.5), 0 0 30px rgba(0, 211, 255, 0.4);
}

.hero .btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 12px 16px;
    font-size: 1rem;
    transition: all 0.15s ease;
}

.hero .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

/* 轮播指示器 */
.hero-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.hero-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.5);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
    outline: none;
}

.hero-indicator:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.8);
}

.hero-indicator.active {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.9);
    width: 32px;
    border-radius: 6px;
}

/* 轮播导航按钮 */
.hero-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: white;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.hero-nav:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-50%) scale(1.1);
}

.hero-nav-prev {
    left: 30px;
}

.hero-nav-next {
    right: 30px;
}

/* 章节样式 */
section {
    padding: 72px 0;
    background: transparent;
    position: relative;
}

/* 为不同的 section 添加微妙的背景变化以区分区块 */
/* 奇数 section - 紫色/青色渐变 */
section:nth-of-type(odd):not(.hero) {
    background: 
        radial-gradient(1200px 600px at 20% -10%, rgba(124, 92, 255, 0.12), transparent 60%),
        radial-gradient(900px 500px at 90% 10%, rgba(0, 211, 255, 0.08), transparent 55%),
        transparent;
}

/* 偶数 section - 绿色/紫色渐变 */
section:nth-of-type(even):not(.hero) {
    background: 
        radial-gradient(900px 500px at 70% 90%, rgba(53, 208, 127, 0.1), transparent 55%),
        radial-gradient(1200px 600px at 50% 50%, rgba(124, 92, 255, 0.06), transparent 60%),
        transparent;
}

/* 为 section 添加分隔效果 */
section:not(.hero):not(:first-of-type)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.1) 20%, 
        rgba(255, 255, 255, 0.1) 80%, 
        transparent 100%);
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    letter-spacing: -0.3px;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.6;
    max-width: 700px;
    margin: 0 auto;
}

/* 特性区域 */
.features {
    background: transparent;
}

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

/* 四个卡片水平排列 */
.features-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .features-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .features-grid-4 {
        grid-template-columns: 1fr;
    }
}

.feature-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
    padding: 1.5rem;
    border-radius: 18px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: "";
    position: absolute;
    inset: -60px -60px auto auto;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle at 30% 30%, rgba(124, 92, 255, 0.35), transparent 60%);
    transform: rotate(18deg);
    pointer-events: none;
}

/* 深色主题卡片 */
.feature-card-dark {
    background: #2a2a2a;
    border: 1px solid #3a3a3a;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    text-align: left;
    padding: 2rem;
    border-radius: 0.5rem;
}

.feature-card-dark:hover {
    transform: translateY(-4px);
    border-color: #4a4a4a;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.feature-card-dark .feature-title {
    color: #ffffff;
    font-weight: 600;
    font-size: 1.25rem;
    margin-bottom: 1rem;
    text-align: left;
}

.feature-card-dark .feature-description {
    color: #b0b0b0;
    line-height: 1.8;
    margin-bottom: 0;
    text-align: left;
    font-size: 0.95rem;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.feature-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    text-align: center;
}

.feature-description {
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    text-align: center;
}

/* 产品矩阵卡片中的按钮间距 */
.feature-card .btn {
    margin-top: auto;
    align-self: center;
}

/* 企业级 AI 执行通道 */
.execution-channel {
    background: transparent;
    padding: 64px 0 52px;
}

.channel-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 26px;
    align-items: center;
}

.channel-content {
    display: flex;
    flex-direction: column;
}

.channel-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.04);
    border-radius: 999px;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.4px;
    margin-bottom: 16px;
    width: fit-content;
    backdrop-filter: blur(6px);
}

.kicker-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    flex-shrink: 0;
}

.channel-title {
    margin: 16px 0 10px;
    font-size: 44px;
    line-height: 1.12;
    letter-spacing: -0.6px;
    color: var(--text-primary);
    font-weight: 700;
}

.channel-subtitle {
    color: var(--text-muted);
    font-size: 18px;
    margin: 0 0 18px;
    line-height: 1.6;
}

.channel-subtitle strong {
    color: var(--text-primary);
    font-weight: 600;
}

.channel-bullets {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin: 18px 0 22px;
}

.channel-bullet {
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: 14px;
    padding: 12px;
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.bullet-icon {
    width: 26px;
    height: 26px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    font-size: 14px;
}

.bullet-content {
    flex: 1;
}

.bullet-content strong {
    display: block;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.bullet-content div {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}

.channel-ctas {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

.channel-applicable {
    margin-top: 18px;
    color: rgba(233, 236, 246, 0.55);
    font-size: 13px;
    line-height: 1.5;
}

.channel-diagram {
    height: 100%;
}

.diagram-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 18px;
    box-shadow: var(--shadow-sm);
    padding: 18px;
}

.diagram-title {
    margin: 0 0 10px;
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 700;
}

.diagram-flow {
    display: grid;
    gap: 10px;
    margin-bottom: 12px;
}

.diagram-node {
    border: 1px solid rgba(255, 255, 255, 0.10);
    background: rgba(255, 255, 255, 0.04);
    border-radius: 14px;
    padding: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.node-text {
    flex: 1;
}

.node-text strong {
    display: block;
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 4px;
}

.node-text small {
    display: block;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.4;
}

.node-tag {
    font-size: 12px;
    padding: 6px 10px;
    border-radius: 999px;
    font-weight: 800;
    white-space: nowrap;
    flex-shrink: 0;
}

/* 不同颜色的标签 */
.tag-entry {
    background: linear-gradient(90deg, rgba(0, 211, 255, 0.95), rgba(124, 92, 255, 0.95));
    color: #06101a;
}

.tag-orchestration {
    background: linear-gradient(90deg, rgba(124, 92, 255, 0.95), rgba(156, 39, 176, 0.95));
    color: #ffffff;
}

.tag-security {
    background: linear-gradient(90deg, rgba(33, 150, 243, 0.95), rgba(30, 136, 229, 0.95));
    color: #ffffff;
}

.tag-tooling {
    background: linear-gradient(90deg, rgba(124, 92, 255, 0.95), rgba(0, 211, 255, 0.95));
    color: #06101a;
}

.tag-execution {
    background: linear-gradient(90deg, rgba(63, 81, 181, 0.95), rgba(103, 58, 183, 0.95));
    color: #ffffff;
}

.diagram-note {
    margin-top: 12px;
    color: rgba(233, 236, 246, 0.55);
    font-size: 12px;
    line-height: 1.5;
}

@media (max-width: 980px) {
    .channel-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .channel-title {
        font-size: 38px;
    }

    .channel-bullets {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 520px) {
    .channel-title {
        font-size: 32px;
    }
}

/* 企业 AI 落地的核心难点 */
.core-challenges {
    background: transparent;
    padding: 64px 0;
}

.core-challenges .section-title {
    font-size: 3rem;
}

@media (max-width: 980px) {
    .core-challenges .section-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 520px) {
    .core-challenges .section-title {
        font-size: 2rem;
    }
}

.challenges-intro {
    max-width: 900px;
    margin: 0 auto 3rem;
    text-align: center;
}

.challenges-intro p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-muted);
    margin: 0;
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 3rem;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.challenge-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    display: flex;
    flex-direction: column;
}

.challenge-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.06);
}

.challenge-card-icon {
    font-size: 32px;
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0.9;
    text-align: center;
    display: block;
}

.challenge-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 16px;
    letter-spacing: -0.2px;
    line-height: 1.4;
}

.challenge-card-points {
    list-style: none;
    padding: 0;
    margin: 0 0 16px;
    flex: 1;
}

.challenge-card-points li {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.challenge-card-points li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 18px;
}

.challenge-card-result {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 600;
    margin: 0;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.challenges-conclusion {
    max-width: 900px;
    margin: 3rem auto 0;
    text-align: center;
}

.conclusion-highlight {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-primary);
    margin: 0 0 20px;
}

.conclusion-highlight strong {
    font-weight: 700;
    color: var(--text-primary);
}

.conclusion-transition {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-muted);
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .challenges-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 980px) {
    .challenges-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .core-challenges {
        padding: 48px 0;
    }
}

@media (max-width: 520px) {
    .challenge-card {
        padding: 20px;
    }

    .challenge-card-title {
        font-size: 16px;
    }

    .conclusion-highlight {
        font-size: 16px;
    }

    .conclusion-transition {
        font-size: 15px;
    }
}

/* AI 调用企业系统的执行闭环 */
.execution-loop {
    background: transparent;
    padding: 48px 0;
}

.execution-flow {
    max-width: 900px;
    margin: 2rem auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.flow-node {
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.flow-node:hover {
    transform: translateX(8px);
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.06);
}

.node-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.node-info {
    flex: 1;
}

.node-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.node-desc {
    font-size: 0.8125rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin: 0;
}

.node-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 0.8125rem;
    font-weight: 700;
    white-space: nowrap;
    flex-shrink: 0;
}

/* 不同颜色的按钮徽章 */
.badge-entry {
    background: linear-gradient(90deg, rgba(0, 211, 255, 0.9), rgba(124, 92, 255, 0.8));
    color: #06101a;
    box-shadow: 0 4px 12px rgba(0, 211, 255, 0.25);
}

.badge-orchestration {
    background: linear-gradient(90deg, rgba(124, 92, 255, 0.9), rgba(156, 39, 176, 0.8));
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(124, 92, 255, 0.3);
}

.badge-security {
    background: linear-gradient(90deg, rgba(33, 150, 243, 0.9), rgba(30, 136, 229, 0.8));
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.3);
}

.badge-tooling {
    background: linear-gradient(90deg, rgba(124, 92, 255, 1), rgba(0, 211, 255, 1));
    color: #06101a;
    box-shadow: 0 4px 12px rgba(124, 92, 255, 0.28);
}

.badge-execution {
    background: linear-gradient(90deg, rgba(63, 81, 181, 0.9), rgba(103, 58, 183, 0.8));
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(63, 81, 181, 0.3);
}

.flow-connector {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: bold;
    margin: 0.125rem 0;
    display: flex;
    justify-content: center;
    line-height: 1;
}

@media (max-width: 768px) {
    .node-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .node-badge {
        align-self: flex-start;
    }

    .flow-node:hover {
        transform: translateY(4px);
    }
}

/* 工作原理 */
.how-it-works {
    background: transparent;
}

.workflow {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.workflow-step {
    flex: 1;
    min-width: 250px;
    text-align: center;
    padding: 2rem;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #06101a;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.step-description {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 0.875rem;
}

.workflow-arrow {
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: bold;
}

/* 客户与案例 */
.cases {
    background: transparent;
    padding: 64px 0;
}

.client-logos {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 32px;
    max-width: 1600px;
    margin: 0 auto;
    align-items: center;
}

.client-logo-item {
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.client-logo-item:hover {
    transform: translateY(-4px);
}

.logo-placeholder {
    width: 100%;
    max-width: 200px;
    height: 120px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    padding: 16px;
}

.client-logo-item:hover .logo-placeholder {
    border-color: rgba(255, 255, 255, 0.22);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-sm);
}

/* 当logo使用白色字体时，确保占位符背景足够深 */
.logo-placeholder-white {
    background: rgba(0, 0, 0, 0.2) !important;
    border-color: rgba(255, 255, 255, 0.15) !important;
}

.client-logo-item:hover .logo-placeholder-white {
    background: rgba(0, 0, 0, 0.3) !important;
    border-color: rgba(255, 255, 255, 0.25) !important;
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    line-height: 1.4;
    letter-spacing: 0.5px;
}

/* 如果使用实际logo图片 */
.client-logo-item img,
.client-logo-img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    opacity: 0.9;
    transition: all 0.3s ease;
    display: block;
    filter: brightness(1);
}

.client-logo-item:hover img,
.client-logo-item:hover .client-logo-img {
    opacity: 1;
    transform: scale(1.05);
    filter: brightness(1.1);
}

/* 白色logo的特殊样式（支持SVG和PNG） */
.client-logo-item img[src*="byd-logo"],
.client-logo-img[src*="byd-logo"],
.client-logo-item img[src*="byd-logo.png"],
.client-logo-img[src*="byd-logo.png"] {
    filter: brightness(1) drop-shadow(0 0 2px rgba(255, 255, 255, 0.3));
}

.client-logo-item:hover img[src*="byd-logo"],
.client-logo-item:hover .client-logo-img[src*="byd-logo"],
.client-logo-item:hover img[src*="byd-logo.png"],
.client-logo-item:hover .client-logo-img[src*="byd-logo.png"] {
    filter: brightness(1.15) drop-shadow(0 0 4px rgba(255, 255, 255, 0.4));
}

/* 响应式设计 */
@media (max-width: 1400px) {
    .client-logos {
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        max-width: 1200px;
    }
}

@media (max-width: 1200px) {
    .client-logos {
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        max-width: 1000px;
    }
}

@media (max-width: 980px) {
    .cases {
        padding: 48px 0;
    }

    .client-logos {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
        max-width: 800px;
    }

    .logo-placeholder {
        height: 100px;
    }

    .logo-text {
        font-size: 16px;
    }
}

@media (max-width: 520px) {
    .client-logos {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 400px;
    }

    .logo-placeholder {
        height: 80px;
        max-width: 180px;
    }

    .logo-text {
        font-size: 14px;
    }
}

/* 应用场景 */
.use-cases {
    background: transparent;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.125rem;
}

.use-case-card {
    background: rgba(255, 255, 255, 0.04);
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.use-case-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: var(--shadow-md);
}

.use-case-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.use-case-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.use-case-description {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 0.875rem;
}

/* 文档区域 */
.docs {
    background: transparent;
}

.docs-content {
    max-width: 900px;
    margin: 0 auto;
}

.code-example {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    margin-bottom: 2rem;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.code-header {
    background: rgba(255, 255, 255, 0.04);
    padding: 0.875rem 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-title {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

.code-example pre {
    margin: 0;
    padding: 1.5rem;
    overflow-x: auto;
    background: transparent;
}

.code-example code {
    color: var(--text-primary);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
}

/* 联系我们 */
/* 预约演示 */
.demo-cta {
    background: 
        radial-gradient(1200px 600px at 20% 50%, rgba(124, 92, 255, 0.25), transparent 60%),
        radial-gradient(900px 500px at 80% 50%, rgba(0, 211, 255, 0.2), transparent 55%),
        transparent;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.demo-cta::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(135deg, rgba(124, 92, 255, 0.1) 0%, transparent 50%),
        linear-gradient(45deg, rgba(0, 211, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.demo-cta-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    text-align: center;
}

.demo-cta-text {
    display: flex;
    flex-direction: column;
    gap: 24px;
    align-items: center;
}

.demo-cta-title {
    font-size: 2.75rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 0;
    color: var(--text-primary);
}

.demo-cta-subtitle {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-muted);
    margin: 0;
}

.demo-cta-benefits {
    display: flex;
    flex-direction: row;
    gap: 32px;
    margin-top: 8px;
    justify-content: center;
    flex-wrap: wrap;
}

.demo-benefit-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

.benefit-icon {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.demo-cta-action {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.btn-large {
    padding: 18px 48px;
    font-size: 1.125rem;
    font-weight: 700;
    min-width: 240px;
    display: inline-block;
    text-align: center;
}

.demo-cta-note {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: center;
    margin: 0;
    opacity: 0.8;
}

/* 响应式设计 */
@media (max-width: 980px) {
    .demo-cta-title {
        font-size: 2.25rem;
    }

    .demo-cta-benefits {
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }
}

@media (max-width: 640px) {
    .demo-cta {
        padding: 60px 0;
    }

    .demo-cta-title {
        font-size: 1.875rem;
    }

    .demo-cta-subtitle {
        font-size: 1rem;
    }

    .demo-cta-benefits {
        flex-direction: column;
        gap: 12px;
    }
}

.contact {
    background: transparent;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-details p {
    color: var(--text-muted);
}

.contact-form {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
    padding: 2rem;
    border-radius: 18px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: rgba(124, 92, 255, 0.5);
    box-shadow: 0 0 0 3px rgba(124, 92, 255, 0.15);
    background: rgba(255, 255, 255, 0.06);
}

.form-group textarea {
    resize: vertical;
}

/* 屏幕阅读器专用样式 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* 页脚 */
.footer {
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
    padding: 3rem 0 1.5rem;
}

/* 顶部导航 */
.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
    display: flex;
    align-items: center;
}

.footer-logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease;
}

.footer-logo-link:hover {
    opacity: 0.8;
}

.footer-logo-img {
    height: 40px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    display: block;
}

.footer-logo-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.footer-logo-text .logo-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
    line-height: 1.2;
}

.footer-logo-text .logo-tagline {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.2;
}

.footer-nav {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s ease;
    white-space: nowrap;
}

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

/* 中央部分 */
.footer-main {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 3rem;
    margin-bottom: 2rem;
    align-items: start;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-muted);
}

.footer-contact-item {
    display: flex;
    gap: 0.5rem;
}

.footer-contact-item strong {
    color: var(--text-primary);
    font-weight: 600;
    white-space: nowrap;
}

.footer-branches {
    margin-top: 0.5rem;
    line-height: 1.8;
}

.footer-branches strong {
    color: var(--text-primary);
    font-weight: 600;
    display: block;
    margin-bottom: 0.25rem;
}

/* 二维码区域 */
.footer-qrcode {
    text-align: center;
    min-width: 200px;
}

.qrcode-title {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.qrcode-images {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.qrcode-item {
    width: 100px;
    height: 100px;
}

.qrcode-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

.qrcode-placeholder {
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 底部 */
.footer-bottom {
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-legal {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: rgba(233, 236, 246, 0.45);
    line-height: 1.6;
}

.footer-links-inline {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.footer-links-inline a {
    color: rgba(233, 236, 246, 0.45);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links-inline a:hover {
    color: var(--text-primary);
}

.separator {
    color: rgba(233, 236, 246, 0.3);
}

/* 响应式设计 */
@media (max-width: 980px) {
    .footer-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

    .footer-nav {
        gap: 1.5rem;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-qrcode {
        text-align: left;
    }

    .qrcode-images {
        justify-content: flex-start;
    }
}

@media (max-width: 520px) {
    .footer {
        padding: 2rem 0 1rem;
    }

    .footer-nav {
        flex-direction: column;
        gap: 1rem;
    }

    .footer-legal {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .footer-contact-item {
        flex-direction: column;
        gap: 0.25rem;
    }
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: rgba(11, 16, 32, 0.85);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        width: 100%;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
        gap: 1rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .logo-img {
        height: 32px;
        max-width: 150px;
    }

    .logo-name {
        font-size: 1.25rem;
    }

    .logo-tagline {
        font-size: 0.65rem;
    }

    .hero {
        min-height: 500px;
    }

    .hero-slide {
        min-height: 500px;
        padding: 0;
    }

    .hero-slide .container {
        min-height: 500px;
        padding: 40px 20px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-nav {
        width: 40px;
        height: 40px;
        font-size: 24px;
    }

    .hero-nav-prev {
        left: 15px;
    }

    .hero-nav-next {
        right: 15px;
    }

    .hero-indicators {
        bottom: 20px;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-grid,
    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .workflow {
        flex-direction: column;
    }

    .workflow-arrow {
        transform: rotate(90deg);
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-nav {
        display: none; /* 移动端隐藏导航按钮 */
    }

    .hero-indicators {
        gap: 8px;
    }

    .hero-indicator {
        width: 8px;
        height: 8px;
    }

    .hero-indicator.active {
        width: 24px;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}

/* ============================================
   MCP 产品页面专用样式
   ============================================ */

/* Hero 首屏 - 左右分栏 */
.mcp-hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: center;
    min-height: 500px;
}

.mcp-hero-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.mcp-hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--text-primary);
    margin: 0;
    opacity: 0.95;
}

.mcp-hero-points {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.mcp-point-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

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

.mcp-point-content {
    flex: 1;
}

.mcp-point-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.25rem;
    opacity: 1;
}

.mcp-point-desc {
    font-size: 0.875rem;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.5;
    opacity: 0.85;
}

/* Hero 右侧示意图 */
.mcp-hero-diagram {
    display: flex;
    justify-content: center;
    align-items: center;
}

.mcp-diagram-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    min-width: 200px;
}

.mcp-diagram-layer {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    text-align: center;
}

.mcp-layer-highlight {
    background: linear-gradient(135deg, rgba(124, 92, 255, 0.2), rgba(0, 211, 255, 0.2));
    border-color: rgba(124, 92, 255, 0.3);
}

.mcp-diagram-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.mcp-diagram-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.4;
    margin-top: 0.25rem;
    opacity: 0.9;
}

.mcp-diagram-arrow {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

.mcp-diagram-arrow-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    position: relative;
    padding: 0 1rem;
}

.mcp-diagram-arrow-down {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    flex: 1;
}

.mcp-diagram-arrow-up {
    display: flex;
    flex-direction: column-reverse;
    align-items: center;
    gap: 0.25rem;
    flex: 1;
}

.mcp-diagram-arrow-down .arrow-symbol,
.mcp-diagram-arrow-up .arrow-symbol {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

.mcp-diagram-arrow-down .arrow-label,
.mcp-diagram-arrow-up .arrow-label {
    font-size: 0.75rem;
    color: var(--text-primary);
    font-weight: 600;
    white-space: nowrap;
}

.mcp-diagram-arrow-with-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.mcp-diagram-arrow-with-label .arrow-symbol {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

.mcp-diagram-arrow-with-label .arrow-label {
    font-size: 0.75rem;
    color: var(--text-primary);
    font-weight: 600;
    white-space: nowrap;
}

/* 痛点区 */
.pain-points {
    background: transparent;
    padding: 64px 0;
}

.pain-points-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.pain-points-grid-4 {
    grid-template-columns: repeat(4, 1fr);
    max-width: 1400px;
}

.pain-point-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s ease;
}

.pain-point-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.06);
}

.pain-point-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 12px;
}

.pain-point-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0 0 12px;
}

.pain-point-impact {
    font-size: 0.8125rem;
    color: var(--text-muted);
    font-style: italic;
    margin: 0;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* MCP 是什么 - 企业级 AI 执行通道 */
.what-is-mcp {
    background: transparent;
    padding: 64px 0;
}

.mcp-execution-channel {
    max-width: 1200px;
    margin: 0 auto;
}

.channel-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.04);
    border-radius: 999px;
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.4px;
    margin-bottom: 20px;
    width: fit-content;
    backdrop-filter: blur(6px);
}

.kicker-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    flex-shrink: 0;
}

.channel-main-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 20px;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.channel-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-primary);
    margin: 0 0 3rem;
    opacity: 0.9;
}

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

.channel-feature-box {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.channel-feature-box:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.06);
}

.feature-box-icon {
    font-size: 2rem;
    margin-bottom: 12px;
    display: block;
}

.feature-box-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 16px;
}

.feature-box-items {
    display: flex;
    flex-wrap: nowrap;
    gap: 6px;
    justify-content: center;
}

.feature-item {
    font-size: 0.75rem;
    padding: 5px 10px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    color: var(--text-primary);
    opacity: 0.9;
    white-space: nowrap;
    flex-shrink: 0;
}

/* 响应式设计 */
@media (max-width: 980px) {
    .channel-features-grid {
        grid-template-columns: 1fr;
    }

    .channel-main-title {
        font-size: 2rem;
    }
}

/* 核心能力 */
.core-capabilities {
    background: transparent;
    padding: 64px 0;
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto 2rem;
}

.capability-column {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 24px;
}

.capability-column-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

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

.capability-list li {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.capability-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 16px;
}

.capabilities-summary {
    max-width: 1000px;
    margin: 0 auto;
    padding: 24px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    text-align: center;
}

/* AI网关精简能力展示 */
.gateway-capabilities-compact {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 2rem 0 0;
    width: 100%;
}

.gateway-capability-item {
    background: linear-gradient(135deg, rgba(124, 92, 255, 0.08), rgba(0, 211, 255, 0.05));
    border: 1px solid rgba(124, 92, 255, 0.2);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.gateway-capability-item:hover {
    transform: translateY(-2px);
    border-color: rgba(124, 92, 255, 0.4);
    box-shadow: 0 8px 24px rgba(124, 92, 255, 0.15);
    background: linear-gradient(135deg, rgba(124, 92, 255, 0.12), rgba(0, 211, 255, 0.08));
}

.gateway-capability-icon {
    font-size: 2rem;
    margin-bottom: 12px;
    display: block;
    line-height: 1;
}

.gateway-capability-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 10px;
    line-height: 1.4;
}

.gateway-capability-desc {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin: 0;
    flex: 1;
}

/* 功能模块特性列表 */
.module-features-list {
    list-style: none;
    padding: 0;
    margin: 24px 0 0;
}

.module-feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.module-feature-item:last-child {
    margin-bottom: 0;
}

.feature-check {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    color: #ffffff;
    font-size: 0.875rem;
    font-weight: 700;
    flex-shrink: 0;
}

/* 响应式设计 */
@media (max-width: 980px) {
    .gateway-capabilities-compact {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* 支持的大模型 */
.supported-models {
    background: transparent;
    padding: 64px 0;
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.model-item {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100px;
}

.model-item:hover {
    transform: translateY(-4px);
    border-color: rgba(124, 92, 255, 0.4);
    box-shadow: 0 8px 24px rgba(124, 92, 255, 0.15);
    background: rgba(255, 255, 255, 0.06);
}

.model-icon {
    font-size: 1rem;
    margin-bottom: 12px;
    display: none;
    line-height: 1;
    color: var(--text-muted);
    font-weight: 600;
}

.model-logo {
    width: 48px;
    height: 48px;
    object-fit: contain;
    margin-bottom: 12px;
    display: block;
}

.model-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
}

/* 响应式设计 */
@media (max-width: 980px) {
    .models-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 16px;
    }
}

@media (max-width: 640px) {
    .models-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 12px;
    }

    .model-item {
        padding: 16px;
        min-height: 90px;
    }

    .model-icon {
        font-size: 1.75rem;
        margin-bottom: 8px;
    }

    .model-name {
        font-size: 0.8125rem;
    }
}

.capabilities-summary p {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin: 0;
}

.capabilities-summary strong {
    color: var(--text-primary);
    font-weight: 700;
}

/* 架构位置 */
.architecture {
    background: transparent;
    padding: 64px 0;
}

.architecture-content {
    max-width: 1200px;
    margin: 0 auto;
}

.architecture-diagram {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.arch-layer {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    text-align: center;
}

.arch-layer-top {
    background: linear-gradient(135deg, rgba(124, 92, 255, 0.15), rgba(0, 211, 255, 0.15));
}

.arch-layer-middle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.arch-layer-bottom {
    background: rgba(255, 255, 255, 0.06);
}

.arch-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.arch-arrow {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
    text-align: center;
}

.architecture-notes {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.arch-note-item {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.arch-note-item strong {
    color: var(--text-primary);
    font-weight: 700;
}

.architecture-combinations {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.combinations-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 1.5rem;
}

.combinations-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.combination-item {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    padding: 20px;
}

.combination-item h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 12px;
}

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

.combination-item li {
    font-size: 0.8125rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 8px;
    padding-left: 16px;
    position: relative;
}

.combination-item li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}

/* 功能特性 */
.mcp-features {
    background: transparent;
    padding: 64px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-item-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 28px;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.feature-item-card::before {
    content: "";
    position: absolute;
    inset: -60px -60px auto auto;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle at 30% 30%, rgba(124, 92, 255, 0.25), transparent 60%);
    transform: rotate(18deg);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-item-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: var(--shadow-md);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.05));
}

.feature-item-card:hover::before {
    opacity: 1;
}

.feature-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(124, 92, 255, 0.3);
    position: relative;
    z-index: 1;
}

.feature-item-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 12px;
    line-height: 1.4;
    position: relative;
    z-index: 1;
}

.feature-item-desc {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text-muted);
    margin: 0;
    position: relative;
    z-index: 1;
}

/* 响应式设计 */
@media (max-width: 980px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 640px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .feature-item-card {
        padding: 24px;
    }

    .feature-badge {
        width: 44px;
        height: 44px;
        font-size: 1.125rem;
    }
}

/* 产品优势 */
.mcp-advantages {
    background: transparent;
    padding: 64px 0;
}

.advantages-content {
    display: grid;
    grid-template-columns: 1fr 1.8fr;
    gap: 48px;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.advantages-content + .advantages-content {
    margin-top: 64px;
}

.advantages-reverse {
    grid-template-columns: 1.8fr 1fr;
}

.advantages-reverse .advantages-image {
    order: 1;
}

.advantages-reverse .advantages-text {
    order: 2;
}

.advantages-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.advantages-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 24px;
    line-height: 1.3;
}

.advantages-description {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin: 0;
}

.advantages-image {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
}

.advantages-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 16px;
}

/* 响应式设计 */
@media (max-width: 980px) {
    .advantages-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .advantages-content:not(.advantages-reverse) .advantages-image {
        order: -1;
    }

    .advantages-reverse .advantages-image {
        order: -1;
    }

    .advantages-reverse .advantages-text {
        order: 1;
    }

    .advantages-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 640px) {
    .advantages-title {
        font-size: 1.5rem;
    }

    .advantages-description {
        font-size: 0.9375rem;
    }
}

/* 典型场景 */
.mcp-use-cases {
    background: transparent;
    padding: 64px 0;
}

.use-case-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 12px;
}

.action-tag {
    font-size: 0.75rem;
    padding: 4px 10px;
    background: rgba(124, 92, 255, 0.15);
    border: 1px solid rgba(124, 92, 255, 0.3);
    border-radius: 12px;
    color: var(--text-primary);
}

/* 落地路径 */
.implementation-path {
    background: transparent;
    padding: 64px 0;
}

.path-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.path-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
}

.path-step .step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #06101a;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    box-shadow: 0 8px 24px rgba(124, 92, 255, 0.3);
}

.step-content {
    flex: 1;
}

.step-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 8px;
}

.step-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0 0 8px;
}

.step-deliverable {
    font-size: 0.8125rem;
    color: var(--text-muted);
    font-style: italic;
    margin: 0;
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* FAQ */
.faq {
    background: transparent;
    padding: 64px 0;
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.25rem;
    background: transparent;
    border: none;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.06);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 1.25rem;
}

.faq-answer p {
    padding: 1.25rem 0;
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.7;
    color: var(--text-muted);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .mcp-hero-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .mcp-hero-diagram {
        order: -1;
    }

    .capabilities-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .path-timeline {
        grid-template-columns: repeat(2, 1fr);
    }

    .combinations-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1200px) {
    .pain-points-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 980px) {
    .pain-points-grid {
        grid-template-columns: 1fr;
    }

    .pain-points-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .pain-points-grid-4 {
        grid-template-columns: 1fr;
    }

    .pain-points-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .mcp-definition-grid {
        grid-template-columns: 1fr;
    }

    .arch-layer-middle {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 520px) {
    .path-timeline {
        grid-template-columns: 1fr;
    }
}

/* 导航栏响应式 */
@media (max-width: 1200px) {
    .nav-menu {
        gap: 1rem;
    }

    .nav-actions {
        gap: 12px;
    }

    .phone-number {
        font-size: 0.9375rem;
    }

    .nav-demo-btn {
        padding: 7px 18px;
        font-size: 0.8125rem;
    }
}

@media (max-width: 980px) {
    .nav-actions {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(11, 16, 32, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        z-index: 999;
    }

    .nav-menu.active {
        transform: translateX(0);
    }
}