/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS变量 */
:root {
    /* 颜色系统 */
    --color-primary: #C41A1A;
    --color-primary-dark: #A01515;
    --color-primary-light: #E85D5D;
    
    /* 背景色 */
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F5F5F7;
    --color-bg-tertiary: #FAFAFA;
    
    /* 文字色 */
    --color-text-primary: #1D1D1F;
    --color-text-secondary: #86868B;
    --color-text-tertiary: #666666;
    --color-text-muted: #999999;
    
    /* 边框色 */
    --color-border: #E8E8E8;
    --color-border-light: #F0F0F0;
    
    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    
    /* 间距 */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-xxl: 64px;
    --spacing-xxxl: 96px;
    --spacing-section: 120px;
    
    /* 圆角 */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
    
    /* 过渡 */
    --transition-fast: all 0.2s ease;
    --transition-normal: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    /* 布局 */
    --container-width: 1800px;
    --container-padding: 80px;
    --header-height: 80px;
}

/* 基础样式 */
html {
    scroll-behavior: smooth;
    font-size: 16px;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 容器 */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* 排版 */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(56px, 7vw, 96px);
    font-weight: 700;
}

h2 {
    font-size: clamp(42px, 5vw, 64px);
    font-weight: 700;
}

h3 {
    font-size: clamp(28px, 3vw, 40px);
    font-weight: 600;
}

p {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

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

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 20px 48px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: 100px;
    cursor: pointer;
    transition: var(--transition-normal);
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(196, 26, 26, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-primary);
    border: 1.5px solid var(--color-text-primary);
}

.btn-secondary:hover {
    background-color: var(--color-text-primary);
    color: var(--color-bg-primary);
    transform: translateY(-2px);
}

.btn-text {
    background: none;
    border: none;
    color: var(--color-primary);
    padding: 0;
    font-weight: 600;
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-text:hover {
    gap: 12px;
}

/* 导航栏 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    transition: var(--transition-normal);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
}

    .header .container {
        display: flex;
        align-items: center;
        height: 100%;
    }

    .desktop-nav {
        margin-left: auto;
    }

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

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 48px;
}

.nav-link {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 15px;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background-color: var(--color-text-primary);
    transition: var(--transition-normal);
}

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

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

.nav-cta {
    margin-left: 24px;
    padding: 10px 24px;
    font-size: 14px;
}

/* Hero区域 - 全屏沉浸式 */
.hero {
    height: 100vh;
    min-height: 900px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background-color: #FAFAFA;
}

.hero-grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
    background-size: 80px 80px;
    z-index: 0;
}

.hero-grid-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 70% 50%, transparent 0%, #FAFAFA 70%);
}

.hero-visual {
    position: absolute;
    top: 0;
    right: 0;
    width: 55%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.hero-visual::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 40%;
    height: 100%;
    background: linear-gradient(90deg, #FAFAFA 0%, transparent 100%);
    z-index: 2;
    pointer-events: none;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
}

.hero-shape-1 {
    width: 520px;
    height: 520px;
    top: 50%;
    right: 10%;
    transform: translateY(-50%);
    background: linear-gradient(135deg, rgba(196,26,26,0.08) 0%, rgba(196,26,26,0.02) 100%);
    animation: heroFloat1 8s ease-in-out infinite;
}

.hero-shape-2 {
    width: 320px;
    height: 320px;
    top: 20%;
    right: 25%;
    background: linear-gradient(135deg, rgba(196,26,26,0.06) 0%, rgba(232,93,93,0.03) 100%);
    animation: heroFloat2 10s ease-in-out infinite;
}

.hero-shape-3 {
    width: 180px;
    height: 180px;
    bottom: 20%;
    right: 40%;
    background: linear-gradient(135deg, rgba(29,29,31,0.04) 0%, rgba(29,29,31,0.01) 100%);
    animation: heroFloat3 7s ease-in-out infinite;
}

.hero-shape-4 {
    width: 80px;
    height: 80px;
    top: 30%;
    right: 15%;
    background: var(--color-primary);
    opacity: 0.08;
    animation: heroFloat2 6s ease-in-out infinite reverse;
}

.hero-shape-5 {
    width: 40px;
    height: 40px;
    bottom: 35%;
    right: 20%;
    background: var(--color-primary);
    opacity: 0.12;
    border-radius: 8px;
    transform: rotate(45deg);
    animation: heroFloat3 5s ease-in-out infinite;
}

.hero-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid;
}

.hero-ring-1 {
    width: 400px;
    height: 400px;
    top: 50%;
    right: 5%;
    transform: translateY(-50%);
    border-color: rgba(196,26,26,0.08);
    animation: heroRingPulse 4s ease-in-out infinite;
}

.hero-ring-2 {
    width: 280px;
    height: 280px;
    top: 50%;
    right: 12%;
    transform: translateY(-50%);
    border-color: rgba(196,26,26,0.05);
    animation: heroRingPulse 4s ease-in-out infinite 1s;
}

.hero-line {
    position: absolute;
    background: var(--color-primary);
    opacity: 0.06;
}

.hero-line-1 {
    width: 1px;
    height: 60%;
    top: 20%;
    right: 35%;
    animation: heroLineGrow 3s ease-in-out infinite;
}

.hero-line-2 {
    width: 40%;
    height: 1px;
    top: 40%;
    right: 10%;
    animation: heroLineGrowH 3.5s ease-in-out infinite;
}

.hero-line-3 {
    width: 1px;
    height: 30%;
    top: 10%;
    right: 55%;
    opacity: 0.04;
    animation: heroLineGrow 4s ease-in-out infinite 0.5s;
}

.hero-dots {
    position: absolute;
    top: 25%;
    right: 5%;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    opacity: 0.15;
}

.hero-dots span {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-primary);
}

.hero-float-card {
    position: absolute;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: 16px;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.06);
    z-index: 3;
}

.float-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(196,26,26,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.float-card-text {
    display: flex;
    flex-direction: column;
}

.float-card-number {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.float-card-label {
    font-size: 12px;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
}

.hero-float-card-1 {
    top: 28%;
    right: 8%;
    animation: heroCardFloat1 6s ease-in-out infinite;
    opacity: 0;
    animation: heroCardAppear 0.8s ease forwards 1.2s, heroCardFloat1 6s ease-in-out infinite 2s;
}

.hero-float-card-2 {
    top: 52%;
    right: 28%;
    animation: heroCardFloat2 7s ease-in-out infinite;
    opacity: 0;
    animation: heroCardAppear 0.8s ease forwards 1.5s, heroCardFloat2 7s ease-in-out infinite 2.3s;
}

.hero-float-card-3 {
    bottom: 22%;
    right: 12%;
    animation: heroCardFloat3 8s ease-in-out infinite;
    opacity: 0;
    animation: heroCardAppear 0.8s ease forwards 1.8s, heroCardFloat3 8s ease-in-out infinite 2.6s;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    padding-left: calc(var(--container-padding) + 80px);
}

.hero-label-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards 0.2s;
}

.hero-label-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
    animation: heroLabelDotPulse 2s ease-in-out infinite;
}

.hero-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-primary);
}

.hero-title {
    font-size: clamp(48px, 6.5vw, 88px);
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
    margin-bottom: 40px;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.4s;
}

.hero-title-highlight {
    position: relative;
    display: inline;
}

.hero-title-highlight::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 0;
    width: 100%;
    height: 12px;
    background: linear-gradient(90deg, rgba(196,26,26,0.12) 0%, rgba(196,26,26,0.04) 100%);
    border-radius: 4px;
    z-index: -1;
    animation: heroHighlightGrow 1s ease forwards 1s;
    transform: scaleX(0);
    transform-origin: left;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--color-text-secondary);
    margin-bottom: 48px;
    max-width: 480px;
    line-height: 1.7;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.6s;
}

.hero-actions {
    display: flex;
    gap: 16px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.8s;
}

.hero-actions .btn-primary svg {
    transition: transform 0.3s ease;
}

.hero-actions .btn-primary:hover svg {
    transform: translateX(4px);
}

.hero-trust {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 56px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards 1s;
}

.hero-trust-label {
    font-size: 13px;
    color: var(--color-text-muted);
    white-space: nowrap;
}

.hero-trust-brands {
    display: flex;
    align-items: center;
    gap: 12px;
}

.hero-trust-brand {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.hero-trust-divider {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--color-text-muted);
    opacity: 0.5;
}

.hero-scroll {
    position: absolute;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--color-text-muted);
    font-size: 12px;
    letter-spacing: 0.1em;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 1s;
    z-index: 5;
}

.hero-scroll-line {
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, var(--color-text-muted), transparent);
    animation: scrollLine 2s ease infinite;
}

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

@keyframes scrollLine {
    0%, 100% {
        opacity: 0.3;
        transform: scaleY(0.5);
        transform-origin: top;
    }
    50% {
        opacity: 1;
        transform: scaleY(1);
    }
}

@keyframes heroFloat1 {
    0%, 100% { transform: translateY(-50%) translate(0, 0); }
    50% { transform: translateY(-50%) translate(-15px, -20px); }
}

@keyframes heroFloat2 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(20px, -15px); }
}

@keyframes heroFloat3 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-10px, 15px); }
}

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

@keyframes heroLineGrow {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(0.6); }
}

@keyframes heroLineGrowH {
    0%, 100% { transform: scaleX(1); }
    50% { transform: scaleX(0.7); }
}

@keyframes heroCardFloat1 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(5px, -10px); }
}

@keyframes heroCardFloat2 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-8px, 8px); }
}

@keyframes heroCardFloat3 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(6px, -6px); }
}

@keyframes heroCardAppear {
    from { opacity: 0; transform: translateY(20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes heroLabelDotPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.6; }
}

@keyframes heroHighlightGrow {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
}

/* 数据展示区域 */
.data-section {
    padding: var(--spacing-section) 0;
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border-light);
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 80px;
    text-align: center;
}

.data-item {
    position: relative;
}

.data-item::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 48px;
    background-color: var(--color-border-light);
}

.data-item:last-child::after {
    display: none;
}

.data-number {
    font-size: clamp(56px, 6vw, 80px);
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 12px;
}

.data-number span {
    color: var(--color-primary);
}

.data-label {
    font-size: 14px;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
}

/* 业务方向区域 - 大图叙事 */
.business-section {
    padding: var(--spacing-section) 0;
    background-color: var(--color-bg-primary);
}

.business-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 160px;
    margin-bottom: 160px;
    align-items: end;
}

.business-title {
    font-size: clamp(36px, 4vw, 56px);
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.business-title em {
    font-style: normal;
    color: var(--color-primary);
}

.business-desc {
    font-size: 18px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    padding-bottom: 8px;
}

.business-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.business-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-xl);
    background-color: var(--color-bg-secondary);
    aspect-ratio: 4/3;
    cursor: pointer;
    group: true;
}

.business-card-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: transform 0.8s ease;
}

.business-card:hover .business-card-image {
    transform: scale(1.05);
}

.business-card-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 56px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0) 100%);
    color: white;
    z-index: 2;
}

.business-card-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-primary-light);
    margin-bottom: 16px;
}

.business-card-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.business-card-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    max-width: 400px;
}

/* 产品体系区域 - 时间轴 */
.product-section {
    padding: var(--spacing-section) 0;
    background-color: var(--color-bg-secondary);
}

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

.product-title {
    margin-bottom: 20px;
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    letter-spacing: -1px;
}

.product-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 480px;
    margin: 0 auto;
    line-height: 1.6;
}

.product-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    position: relative;
}

.product-card {
    position: relative;
    background-color: var(--color-bg-primary);
    border-radius: var(--border-radius-xl);
    padding: 56px;
    text-align: center;
    transition: var(--transition-normal);
    border: 1px solid var(--color-border-light);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.08);
}

.product-card-icon {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(196, 26, 26, 0.05);
    border-radius: 50%;
    color: var(--color-primary);
}

.product-card-icon svg {
    width: 40px;
    height: 40px;
}

.product-card-number {
    position: absolute;
    top: 24px;
    right: 24px;
    font-size: 64px;
    font-weight: 800;
    color: var(--color-bg-secondary);
    line-height: 1;
    z-index: 0;
}

.product-card-stage {
    display: inline-block;
    padding: 8px 20px;
    background-color: var(--color-primary);
    color: white;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.05em;
    border-radius: 100px;
    margin-bottom: 24px;
}

.product-card-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.product-card-desc {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
}

.product-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--color-border-light);
}

.product-card-period {
    font-size: 13px;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
}

.product-card-footer .btn-text {
    color: var(--color-primary);
    font-size: 14px;
}

.product-note {
    text-align: center;
    margin-top: 80px;
    font-size: 15px;
    color: var(--color-text-muted);
}

/* 即将上线产品 - 杂志风格 */
.upcoming-section {
    padding: var(--spacing-section) 0;
    background-color: var(--color-bg-primary);
    overflow: hidden;
}

.upcoming-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 160px;
    align-items: center;
}

.upcoming-content {
    max-width: 500px;
}

.upcoming-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-primary);
    padding-bottom: 16px;
    border-bottom: 2px solid var(--color-primary);
    margin-bottom: 32px;
}

.upcoming-title {
    font-size: clamp(32px, 4vw, 48px);
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.upcoming-desc {
    font-size: 17px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}

.upcoming-preview {
    position: relative;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    background-color: var(--color-bg-secondary);
    box-shadow: 0 48px 96px rgba(0, 0, 0, 0.1);
}

.upcoming-preview img {
    width: 100%;
    height: auto;
    display: block;
}

/* 全周期产品体系 */
.product-system-section {
    padding: var(--spacing-section) 0;
    background-color: var(--color-bg-secondary);
}

.product-system-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 100px;
}

.product-system-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.product-system-title {
    font-size: clamp(32px, 4vw, 48px);
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 32px;
}

.product-system-desc {
    font-size: 17px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.product-system-note {
    font-size: 15px;
    color: var(--color-text-muted);
    line-height: 1.7;
}

.product-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    align-items: start;
}

.product-card-item {
    background-color: var(--color-bg-primary);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--color-border-light);
    overflow: hidden;
    transition: var(--transition-normal);
}

.product-card-item:hover {
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.06);
}

.product-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 40px 40px 32px;
    cursor: pointer;
    user-select: none;
}

.product-card-header-left {
    flex: 1;
}

.product-card-stage-tag {
    display: inline-block;
    padding: 6px 16px;
    background-color: var(--color-primary);
    color: white;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.05em;
    border-radius: 100px;
    margin-bottom: 20px;
}

.product-card-item-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.product-card-toggle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--color-bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition-fast);
    color: var(--color-text-secondary);
}

.product-card-item.active .product-card-toggle {
    transform: rotate(180deg);
    background-color: var(--color-primary);
    color: white;
}

.product-card-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, padding 0.3s ease;
    padding: 0 40px;
}

.product-card-item.active .product-card-body {
    max-height: 800px;
    padding: 0 40px 40px;
}

.product-card-item-desc {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.product-sub-versions {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.product-sub-version {
    padding: 20px;
    background-color: var(--color-bg-secondary);
    border-radius: var(--border-radius-md);
}

.product-sub-version-name {
    display: inline-block;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.product-sub-version-apply {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 12px;
    line-height: 1.5;
}

.product-card-features {
    list-style: none;
    margin-bottom: 16px;
}

.product-card-features li {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    padding-left: 16px;
    position: relative;
}

.product-card-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background-color: var(--color-primary);
    opacity: 0.5;
}

.product-card-footer-info {
    padding-top: 16px;
    border-top: 1px solid var(--color-border-light);
}

.product-card-period {
    font-size: 13px;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
}

/* 洞察区域 - 杂志网格 */
.insight-section {
    padding: var(--spacing-section) 0;
    background-color: var(--color-bg-primary);
}

.insight-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 100px;
}

.insight-title {
    margin-bottom: 0;
}

.insight-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 1fr;
    gap: 32px;
    align-items: stretch;
}

.insight-card {
    position: relative;
    background-color: var(--color-bg-secondary);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.insight-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.08);
}

.insight-card-image {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
}

.insight-card-content {
    padding: 40px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.insight-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 20px;
}

.insight-card-tag {
    display: inline-block;
    padding: 4px 12px;
    background-color: var(--color-bg-primary);
    color: var(--color-text-secondary);
    font-size: 12px;
    font-weight: 500;
    border-radius: 100px;
}

.insight-card-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 16px;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.insight-card-desc {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
    flex: 1;
}

.insight-more {
    margin-top: 64px;
    text-align: center;
}

/* CTA区域 */
.cta-section {
    position: relative;
    padding: 200px 0;
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    text-align: center;
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(40px, 5vw, 64px);
    color: var(--color-text-primary);
    margin-bottom: 32px;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.cta-subtitle {
    font-size: 20px;
    color: var(--color-text-secondary);
    margin-bottom: 48px;
    line-height: 1.7;
}

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

.cta-buttons .btn-secondary {
    border-color: var(--color-border);
    color: var(--color-text-primary);
}

.cta-buttons .btn-secondary:hover {
    background-color: var(--color-bg-primary);
    border-color: var(--color-text-primary);
}

/* 页脚 */
.footer {
    background-color: var(--color-bg-primary);
    padding: 160px 0 48px;
    border-top: 1px solid var(--color-border-light);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 80px;
    margin-bottom: 100px;
}

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

.footer-logo {
    margin-bottom: 24px;
}

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

.footer-slogan {
    font-size: 15px;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.footer-contact {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 2;
}

.footer-section-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 24px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.footer-links {
    list-style: none;
}

.footer-link {
    display: block;
    color: var(--color-text-secondary);
    font-size: 14px;
    margin-bottom: 12px;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--color-border-light);
}

.footer-copyright {
    font-size: 13px;
    color: var(--color-text-muted);
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

.footer-social a:hover {
    background-color: var(--color-text-primary);
    color: white;
}

/* 服务模块区域 */
.service-modules-section {
    padding: var(--spacing-section) 0;
    background-color: var(--color-bg-primary);
    position: relative;
    overflow: hidden;
}

.service-modules-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--color-border) 50%, transparent 100%);
}

.service-modules-header {
    text-align: center;
    margin-bottom: 120px;
    position: relative;
}

.service-modules-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.service-modules-title {
    font-size: clamp(40px, 5vw, 64px);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.service-modules-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 500px;
    margin: 0 auto;
    line-height: 1.7;
}

.service-modules-line {
    width: 60px;
    height: 3px;
    background-color: var(--color-primary);
    margin: 40px auto 0;
    border-radius: 2px;
}

.service-modules-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.service-module-card {
    background-color: var(--color-bg-primary);
    border-radius: var(--border-radius-xl);
    padding: 56px 40px;
    transition: var(--transition-normal);
    border: 2px solid #e9e8e7;
    position: relative;
    overflow: hidden;
}

.service-module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-module-card:hover::before {
    transform: scaleX(1);
}

.service-module-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.08);
    border-color: var(--color-primary);
}

.service-module-number {
    position: absolute;
    top: 24px;
    right: 24px;
    font-size: 48px;
    font-weight: 800;
    color: var(--color-bg-secondary);
    line-height: 1;
    transition: color 0.3s ease;
}

.service-module-card:hover .service-module-number {
    color: rgba(196, 26, 26, 0.08);
}

.service-module-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(196, 26, 26, 0.08) 0%, rgba(196, 26, 26, 0.03) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 32px;
    transition: all 0.3s ease;
}

.service-module-card:hover .service-module-icon {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    transform: scale(1.05);
}

.service-module-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
    color: var(--color-text-primary);
}

.service-module-card p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* 产品卡片详情样式 */
.product-card-detail {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    text-align: left;
}

.product-card-features {
    list-style: none;
    text-align: left;
    margin-bottom: 24px;
}

.product-card-features li {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    padding: 4px 0;
    padding-left: 16px;
    position: relative;
}

.product-card-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-primary);
    opacity: 0.5;
}

.product-card .product-card-desc {
    text-align: center;
}

/* 子页面通用头部 */
.page-header {
    padding: calc(var(--header-height) + 120px) 0 80px;
    background-color: var(--color-bg-secondary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
}

.page-header-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 24px;
    position: relative;
}

.page-header h1 {
    font-size: clamp(40px, 5vw, 64px);
    margin-bottom: 24px;
    position: relative;
}

.page-header p {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
    position: relative;
}

/* NGEO页面样式 */
.ngeo-services-section {
    padding: var(--spacing-section) 0;
    background-color: var(--color-bg-primary);
    position: relative;
    overflow: hidden;
}

.ngeo-services-section::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(196, 26, 26, 0.03) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.ngeo-services-section::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -150px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(196, 26, 26, 0.02) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-primary);
    background: linear-gradient(135deg, rgba(196, 26, 26, 0.08), rgba(196, 26, 26, 0.04));
    padding: 8px 20px;
    border-radius: 100px;
    margin-bottom: 24px;
}

.ngeo-services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 80px;
    position: relative;
    z-index: 1;
}

.ngeo-service-card {
    background-color: var(--color-bg-primary);
    border-radius: 20px;
    padding: 48px 36px 40px;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: 2px solid #e9e8e7;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.ngeo-service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.ngeo-service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.08);
    border-color: var(--color-primary);
}

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

.ngeo-service-card-featured {
    background-color: var(--color-bg-tertiary);
    border-color: #e9e8e7;
    box-shadow: 0 4px 24px rgba(196, 26, 26, 0.04);
}

.ngeo-service-card-featured::before {
    opacity: 1;
}

.ngeo-service-card-featured:hover {
    box-shadow: 0 24px 64px rgba(196, 26, 26, 0.1);
}

.ngeo-card-number {
    position: absolute;
    top: 28px;
    right: 32px;
    font-size: 64px;
    font-weight: 800;
    color: var(--color-bg-secondary);
    line-height: 1;
    letter-spacing: -2px;
    transition: color 0.4s ease;
    user-select: none;
}

.ngeo-service-card:hover .ngeo-card-number {
    color: rgba(196, 26, 26, 0.06);
}

.ngeo-card-number span {
    font-size: 64px;
}

.ngeo-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(196, 26, 26, 0.08), rgba(196, 26, 26, 0.03));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    color: var(--color-primary);
    transition: all 0.4s ease;
}

.ngeo-card-icon svg {
    width: 28px;
    height: 28px;
}

.ngeo-service-card:hover .ngeo-card-icon {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: #fff;
    transform: scale(1.05);
}

.ngeo-service-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--color-text-primary);
    letter-spacing: -0.3px;
}

.ngeo-service-card p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.75;
    flex-grow: 1;
}

.ngeo-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border-light);
}

.ngeo-card-tags span {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-tertiary);
    background: var(--color-bg-secondary);
    padding: 5px 12px;
    border-radius: 100px;
    transition: all 0.3s ease;
}

.ngeo-service-card:hover .ngeo-card-tags span {
    background: rgba(196, 26, 26, 0.06);
    color: var(--color-primary);
}

.ngeo-card-arrow {
    position: absolute;
    bottom: 36px;
    right: 36px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateX(-8px);
}

.ngeo-card-arrow svg {
    width: 16px;
    height: 16px;
}

.ngeo-service-card:hover .ngeo-card-arrow {
    opacity: 1;
    transform: translateX(0);
    background: var(--color-primary);
    color: #fff;
}

.ngeo-diagnosis-section {
    padding: var(--spacing-section) 0;
    background-color: var(--color-bg-secondary);
}

.ngeo-diagnosis-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 120px;
    align-items: center;
}

.ngeo-diagnosis-content h2 {
    font-size: clamp(32px, 4vw, 48px);
    margin-bottom: 24px;
}

.ngeo-diagnosis-content p {
    font-size: 17px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}

.ngeo-diagnosis-visual {
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    min-height: 360px;
}

.ngeo-diagnosis-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius-xl);
    display: block;
}

.ngeo-cta-section {
    padding: var(--spacing-section) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.ngeo-cta-bg {
    position: absolute;
    inset: 0;
    background: var(--color-bg-secondary);
    z-index: 0;
}

.ngeo-cta-bg::before {
    content: '';
    position: absolute;
    top: -120px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(196, 26, 26, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

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

.ngeo-cta-content {
    position: relative;
    z-index: 1;
    max-width: 680px;
    margin: 0 auto;
}

.ngeo-cta-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-primary);
    background: rgba(196, 26, 26, 0.08);
    padding: 6px 18px;
    border-radius: 100px;
    margin-bottom: 28px;
}

.ngeo-cta-content h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    color: var(--color-text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.5px;
    line-height: 1.3;
}

.ngeo-cta-content p {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

.ngeo-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--color-primary), #e03030);
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    padding: 18px 44px;
    border-radius: 100px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 8px 32px rgba(196, 26, 26, 0.25);
}

.ngeo-cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(196, 26, 26, 0.4);
}

/* 关于我们页面样式 */
.about-intro-section {
    padding: var(--spacing-section) 0;
    background-color: var(--color-bg-primary);
    position: relative;
    overflow: hidden;
}

.about-intro-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(ellipse at right center, rgba(196,26,26,0.02) 0%, transparent 70%);
    pointer-events: none;
}

.about-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 120px;
    align-items: start;
}

.about-intro-left {
    position: sticky;
    top: 160px;
}

.about-intro-big-number {
    font-size: clamp(120px, 15vw, 200px);
    font-weight: 900;
    color: var(--color-bg-secondary);
    line-height: 1;
    letter-spacing: -0.05em;
    margin-bottom: 32px;
    position: relative;
}

.about-intro-big-number::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 0;
    width: 80px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 2px;
}

.about-intro-label {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-text-muted);
}

.about-intro-label-line {
    width: 40px;
    height: 1px;
    background: var(--color-border);
}

.about-intro-right h2 {
    font-size: clamp(36px, 4.5vw, 56px);
    margin-bottom: 40px;
    position: relative;
}

.about-intro-right h2::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
}

.about-intro-text {
    font-size: 17px;
    color: var(--color-text-secondary);
    line-height: 2;
    margin-bottom: 24px;
}

.about-intro-divider {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), transparent);
    margin: 48px 0;
    border-radius: 1px;
}

.about-intro-highlights {
    display: flex;
    gap: 64px;
}

.about-intro-highlight {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.about-intro-highlight-num {
    font-size: 40px;
    font-weight: 800;
    color: var(--color-text-primary);
    letter-spacing: -0.03em;
    line-height: 1;
}

.about-intro-highlight-num span {
    font-size: 24px;
    color: var(--color-primary);
    font-weight: 700;
}

.about-intro-highlight-label {
    font-size: 13px;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
}

/* 发展历程时间线 */
.timeline-section {
    padding: var(--spacing-section) 0;
    background-color: var(--color-bg-secondary);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 80px auto 0;
    padding-left: 60px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-primary), var(--color-border));
}

.timeline-item {
    position: relative;
    padding-bottom: 64px;
}

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

.timeline-dot {
    position: absolute;
    left: -48px;
    top: 4px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--color-primary);
    border: 3px solid var(--color-bg-secondary);
    z-index: 1;
}

.timeline-year {
    display: inline-block;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.timeline-item h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.timeline-item p {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* 我们的坚持 */
.values-section {
    padding: var(--spacing-section) 0;
    background-color: var(--color-bg-primary);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    margin-top: 80px;
}

.value-card {
    text-align: center;
    padding: 48px 40px;
    background-color: var(--color-bg-secondary);
    border-radius: var(--border-radius-xl);
    transition: var(--transition-normal);
}

.value-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.06);
}

.value-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--color-primary);
    opacity: 0.15;
    margin-bottom: 16px;
    line-height: 1;
}

.value-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.value-card p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* 联系我们页面样式 */
.contact-section {
    padding: var(--spacing-section) 0;
    background-color: var(--color-bg-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 120px;
    align-items: start;
}

.contact-info-list {
    margin-top: 48px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px 0;
    border-bottom: 1px solid var(--color-border-light);
}

.contact-info-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background-color: rgba(196, 26, 26, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-info-label {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 4px;
    letter-spacing: 0.05em;
}

.contact-info-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.contact-form-wrap {
    background-color: var(--color-bg-secondary);
    border-radius: var(--border-radius-xl);
    padding: 56px;
}

.contact-form-wrap h3 {
    font-size: 28px;
    margin-bottom: 12px;
}

.contact-form-wrap > p {
    font-size: 15px;
    color: var(--color-text-secondary);
    margin-bottom: 40px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    font-size: 15px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    transition: var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(196, 26, 26, 0.08);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 响应式设计 */
@media (max-width: 1920px) {
    :root {
        --container-padding: 60px;
    }
}

@media (max-width: 1600px) {
    :root {
        --container-padding: 48px;
    }
}

@media (max-width: 1400px) {
    :root {
        --container-padding: 40px;
    }
}

@media (max-width: 1200px) {
    :root {
        --container-padding: 32px;
    }
    
    .hero-visual {
        width: 50%;
        opacity: 0.6;
    }

    .hero-float-card {
        display: none;
    }
    
    .business-header {
        gap: 80px;
    }
    
    .data-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 64px;
    }
    
    .data-item:nth-child(2)::after {
        display: none;
    }
    
    .product-timeline::before {
        display: none;
    }
}


/* 移动端导航按钮 - 桌面端隐藏（须在 max-width:992px 媒体查询之前，避免覆盖） */
.mobile-menu-btn {
    display: none;
}

.mobile-nav-overlay {
    display: none;
}

@media (max-width: 992px) {
    :root {
        --container-padding: 24px;
        --spacing-section: 140px;
    }
    

    .desktop-nav {
        display: none;
    }
    .mobile-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        z-index: 1001;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        overflow-y: auto;
    }

    .mobile-nav.active {
        opacity: 1;
        visibility: visible;
    }

    .mobile-nav-menu {
        list-style: none;
        margin: 0;
        padding: 20px var(--container-padding);
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .mobile-nav-menu li {
        width: 100%;
    }

    .mobile-nav-menu .nav-link {
        font-size: 18px;
        padding: 16px 24px;
        width: 100%;
        text-align: center;
        border-radius: 12px;
        transition: all 0.3s ease;
        display: block;
    }

    .mobile-nav-menu .nav-link:hover,
    .mobile-nav-menu .nav-link.active {
        background-color: rgba(196, 26, 26, 0.08);
        color: var(--color-primary);
    }

    .mobile-nav-menu .nav-link::after {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        width: 44px;
        height: 44px;
        margin-left: auto;
        background: none;
        border: none;
        cursor: pointer;
        padding: 8px;
        z-index: 1002;
    }

    .mobile-menu-btn span {
        display: block;
        width: 24px;
        height: 2px;
        background-color: var(--color-text-primary);
        margin: 3px 0;
        transition: all 0.3s ease;
    }

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

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

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

    .mobile-nav-overlay {
        display: block;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 998;
    }

    .mobile-nav-overlay.active {
        opacity: 1;
        visibility: visible;
    }
    
    .hero {
        min-height: auto;
        padding: 120px 0 80px;
    }

    .hero-title {
        white-space: normal;
        font-size: clamp(28px, 8vw, 40px);
    }
    
    .hero-visual {
        position: absolute;
        width: 100%;
        opacity: 0.25;
    }

    .hero-visual::after {
        display: none;
    }

    .hero-float-card {
        display: none;
    }

    .hero-dots {
        display: none;
    }

    .hero-grid-bg {
        background-size: 60px 60px;
    }
    
    .hero-content {
        padding: 0 var(--container-padding);
        max-width: 100%;
        text-align: center;
    }

    .hero-label-wrap {
        margin-bottom: 20px;
        justify-content: center;
    }

    .hero-label {
        font-size: 11px;
    }

    .hero-title {
        font-size: clamp(28px, 8vw, 40px);
        line-height: 1.2;
        margin-bottom: 20px;
    }

    .hero-subtitle {
        font-size: 15px;
        margin-bottom: 28px;
        line-height: 1.6;
        max-width: 100%;
    }

    .hero-actions {
        gap: 12px;
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
        justify-content: center;
    }
    
    .hero-scroll {
        display: none;
    }
    
    .business-header {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .business-showcase {
        grid-template-columns: 1fr;
    }
    
    .product-timeline {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .product-card-footer {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
    
    .product-cards-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .upcoming-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .insight-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }

    .insight-title {
        font-size: clamp(24px, 6vw, 36px);
    }
    
    .insight-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .service-modules-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .service-modules-header {
        margin-bottom: 48px;
    }

    .ngeo-services-grid {
        grid-template-columns: 1fr;
    }

    .ngeo-diagnosis-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-intro-left {
        position: static;
    }

    .about-intro-big-number {
        font-size: 72px;
    }

    .about-intro-highlights {
        gap: 32px;
    }

    .about-intro-right h2 {
        font-size: clamp(24px, 6vw, 36px);
    }

    .about-intro-text {
        font-size: 15px;
        line-height: 1.7;
    }

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

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-brand {
        grid-column: span 2;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 16px;
        --spacing-section: 112px;
    }
    
    .btn {
        width: 100%;
        padding: 16px 32px;
        font-size: 15px;
    }

    .hero-actions .btn {
        width: 100%;
    }
    
    .data-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .data-number {
        font-size: clamp(40px, 8vw, 56px);
    }

    .data-label {
        font-size: 14px;
    }
    
    .data-item::after {
        display: none;
    }
    
    .insight-grid {
        grid-template-columns: 1fr;
    }
    
    .service-modules-grid {
        grid-template-columns: 1fr;
    }

    .cta-buttons {
        flex-direction: column;
        gap: 16px;
    }

    .product-system-header {
        margin-bottom: 48px;
    }

    .product-header {
        margin-bottom: 40px;
    }

    .product-title {
        font-size: clamp(28px, 6vw, 40px);
    }

    .product-subtitle {
        font-size: 16px;
        max-width: 100%;
        line-height: 1.5;
    }

    .service-modules-title {
        font-size: clamp(28px, 7vw, 40px);
    }

    .service-modules-subtitle {
        font-size: 16px;
        max-width: 100%;
        line-height: 1.6;
    }

    .product-system-title {
        font-size: clamp(24px, 6vw, 36px);
    }

    .product-system-desc {
        font-size: 15px;
        max-width: 100%;
        line-height: 1.7;
    }

    .page-header {
        padding: calc(var(--header-height) + 60px) 0 48px;
    }

    .page-header h1 {
        font-size: clamp(28px, 7vw, 40px);
    }

    .page-header p {
        font-size: 16px;
        max-width: 100%;
        line-height: 1.6;
    }

    .product-card-header {
        padding: 32px 24px 24px;
    }

    .product-card-item.active .product-card-body {
        padding: 0 24px 32px;
    }

    .ngeo-cta-content {
        padding: 0 20px;
    }

    .ngeo-cta-content h2 {
        font-size: clamp(24px, 6vw, 36px);
    }

    .ngeo-cta-content p {
        max-width: 100%;
        line-height: 1.6;
    }

    .ngeo-cta-btn {
        padding: 16px 36px;
        font-size: 15px;
    }

    .contact-form-wrap {
        padding: 32px 20px;
    }

    .contact-form-wrap h3 {
        font-size: 22px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-brand {
        grid-column: auto;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .footer-section-title {
        font-size: 16px;
    }

    .footer-link {
        font-size: 14px;
    }

    .footer-slogan {
        font-size: 14px;
    }

    .footer-contact p {
        font-size: 14px;
    }
}

@media (max-width: 576px) {
    :root {
        --container-padding: 12px;
    }

    .hero-title {
        font-size: clamp(24px, 9vw, 36px);
        margin-bottom: 16px;
        line-height: 1.25;
    }

    .hero-subtitle {
        font-size: 14px;
        margin-bottom: 24px;
        max-width: 100%;
        line-height: 1.6;
    }

    .hero-label-wrap {
        margin-bottom: 16px;
        justify-content: center;
    }

    .hero-label {
        font-size: 10px;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 12px;
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .btn {
        padding: 14px 28px;
        font-size: 14px;
    }

    .hero-trust {
        flex-wrap: wrap;
        gap: 8px;
    }

    .hero-trust-brands {
        gap: 8px;
    }

    .hero-title-highlight::after {
        height: 8px;
        bottom: 4px;
    }

    .value-card {
        padding: 32px 24px;
    }

    .value-number {
        font-size: 36px;
    }

    .value-card h3 {
        font-size: 20px;
    }

    .service-module-card {
        padding: 40px 24px;
    }

    .service-module-icon {
        width: 56px;
        height: 56px;
    }

    .service-module-card h3 {
        font-size: 20px;
    }

    .service-module-number {
        font-size: 40px;
    }

    .ngeo-service-card {
        padding: 32px 24px;
    }

    .ngeo-card-number {
        font-size: 48px;
    }

    .ngeo-service-card h3 {
        font-size: 20px;
    }

    .product-card-header {
        padding: 24px 20px;
    }

    .product-card-item.active .product-card-body {
        padding: 0 20px 24px;
    }

    .product-card-item-title {
        font-size: 18px;
    }

    .insight-card-title {
        font-size: 18px;
    }

    .insight-card-desc {
        font-size: 14px;
    }
    
    .business-card-content {
        padding: 24px;
    }

    .business-card-title {
        font-size: 20px;
    }

    .business-card-desc {
        font-size: 14px;
    }
    
    .product-card {
        padding: 24px;
    }
    
    .insight-card-content {
        padding: 24px;
    }
    
    .cta-section {
        padding: 80px 0;
    }
}

/* 动画类 */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-delay-1 {
    transition-delay: 0.1s;
}

.fade-in-delay-2 {
    transition-delay: 0.2s;
}

.fade-in-delay-3 {
    transition-delay: 0.3s;
}

.fade-in-delay-4 {
    transition-delay: 0.4s;
}

.fade-in-delay-5 {
    transition-delay: 0.5s;
}

/* 文字动画 */
.text-reveal {
    overflow: hidden;
}

.text-reveal-inner {
    transform: translateY(100%);
    animation: textReveal 1s ease forwards;
}

@keyframes textReveal {
    to {
        transform: translateY(0);
    }
}

/* 图片视差效果 */
.parallax {
    will-change: transform;
}