/* ==========================================
   睿服企服 RuiHealth Solutions - 官方网站样式
   版本: 1.0.0
   作者: AI Assistant
   ========================================== */

/* CSS变量定义 */
:root {
    /* 主色调 */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --primary-gradient: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    
    /* 辅助色 */
    --secondary: #0ea5e9;
    --accent: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* 中性色 */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* 背景色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #0f172a;
    
    /* 文字色 */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --text-white: #ffffff;
    
    /* 边框 */
    --border-color: #e2e8f0;
    --border-radius-sm: 6px;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-primary: 0 10px 40px -10px rgba(37, 99, 235, 0.5);
    
    /* 过渡 */
    --transition-fast: 150ms ease;
    --transition: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* 间距 */
    --section-padding: 120px;
    --section-padding-mobile: 80px;
    
    /* 字体 */
    --font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

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

/* 容器 */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (min-width: 768px) {
    .container {
        padding: 0 32px;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 48px;
    }
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-white);
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px -8px rgba(37, 99, 235, 0.6);
}

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

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

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
    border-radius: var(--border-radius-lg);
}

.btn-xl {
    padding: 20px 40px;
    font-size: 18px;
    border-radius: var(--border-radius-lg);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 20px;
    height: 20px;
    transition: transform var(--transition);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    transition: all var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

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

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

/* PC导航菜单 */
.nav-menu {
    display: none;
    align-items: center;
    gap: 4px;
}

@media (min-width: 1024px) {
    .nav-menu {
        display: flex;
    }
}

.nav-link {
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(37, 99, 235, 0.08);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-demo {
    display: none;
}

@media (min-width: 1024px) {
    .btn-demo {
        display: inline-flex;
    }
}

/* 汉堡菜单 */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 40px;
    height: 40px;
    padding: 8px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition);
}

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

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

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

@media (min-width: 1024px) {
    .hamburger {
        display: none;
    }
}

/* Mobile侧边菜单 */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 360px;
    height: 100vh;
    background: var(--bg-primary);
    box-shadow: var(--shadow-xl);
    z-index: 1001;
    transition: right var(--transition);
    display: flex;
    flex-direction: column;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu-header .logo-text {
    font-size: 18px;
}

.close-menu {
    width: 40px;
    height: 40px;
    font-size: 28px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-nav-menu {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
}

.mobile-nav-menu li {
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-link {
    display: block;
    padding: 16px 8px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
    color: var(--primary);
    padding-left: 16px;
}

.mobile-menu-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

/* 首页首屏 Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(37, 99, 235, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 80% 50%, rgba(14, 165, 233, 0.08), transparent);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%232563eb' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 72px);
    padding-top: 60px;
    padding-bottom: 60px;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
}

@media (min-width: 1024px) {
    .hero-content {
        max-width: 1120px;
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: 100px;
    margin-bottom: 32px;
}

.badge-icon {
    font-size: 18px;
}

.badge-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 0.3px;
}

.hero-title {
    margin-bottom: 24px;
}

.title-main {
    display: block;
    font-size: 36px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.title-sub {
    display: block;
    font-size: 28px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--primary);
    margin-top: 12px;
}

@media (min-width: 768px) {
    .title-main {
        font-size: 48px;
    }
    .title-sub {
        font-size: 36px;
    }
}

@media (min-width: 1024px) {
    .title-main {
        font-size: 56px;
    }
    .title-sub {
        font-size: 42px;
    }
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-weight: 500;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 22px;
    }
}

.hero-description {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 48px;
    justify-content: center;
}

@media (min-width: 640px) {
    .hero-cta {
        flex-direction: row;
    }
}

/* Hero 效益列表 */
.hero-benefits {
    margin-top: 8px;
}

.benefits-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 16px;
    text-align: center;
}

.benefits-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

@media (min-width: 1024px) {
    .benefits-grid {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        align-items: stretch;
    }
}

.benefit-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: 100px;
    font-size: 14px;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

@media (min-width: 1024px) {
    .benefit-tag {
        width: 100%;
        justify-content: flex-start;
    }
}

.benefit-tag:hover {
    background: var(--bg-primary);
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.benefit-icon {
    font-size: 14px;
    flex-shrink: 0;
}

@media (max-width: 640px) {
    .benefits-grid {
        flex-direction: column;
        align-items: stretch;
    }
    
    .benefit-tag {
        justify-content: flex-start;
    }
}

/* Hero装饰元素 */
.hero-decoration {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}

.deco-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.4;
}

.deco-circle-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation: pulse 8s ease-in-out infinite;
}

.deco-circle-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(225deg, rgba(14, 165, 233, 0.06) 0%, transparent 70%);
    bottom: 10%;
    left: -100px;
    animation: pulse 10s ease-in-out infinite reverse;
}

.deco-circle-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(45deg, rgba(16, 185, 129, 0.05) 0%, transparent 70%);
    top: 40%;
    right: 10%;
    animation: float 12s ease-in-out infinite;
}

.deco-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(37, 99, 235, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.5;
}

.deco-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.2), transparent);
}

.deco-line-1 {
    width: 50%;
    top: 30%;
    left: 0;
    animation: slideRight 15s linear infinite;
}

.deco-line-2 {
    width: 40%;
    top: 70%;
    right: 0;
    animation: slideLeft 18s linear infinite;
}

.deco-dots {
    position: absolute;
    top: 20%;
    right: 15%;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    opacity: 0.3;
}

.deco-dots span {
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    animation: dotPulse 3s ease-in-out infinite;
}

.deco-dots span:nth-child(2n) { animation-delay: 0.5s; }
.deco-dots span:nth-child(3n) { animation-delay: 1s; }
.deco-dots span:nth-child(4n) { animation-delay: 1.5s; }

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.4; }
    50% { transform: scale(1.1); opacity: 0.6; }
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

@keyframes slideRight {
    0% { transform: translateX(-100%); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateX(200%); opacity: 0; }
}

@keyframes slideLeft {
    0% { transform: translateX(100%); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateX(-200%); opacity: 0; }
}

@keyframes dotPulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.3); }
}

/* 滚动指示器 */
.hero-scroll {
    display: none;
    justify-content: center;
    margin-top: 32px;
}

@media (min-width: 1024px) {
    .hero-scroll {
        display: flex;
        margin-top: 24px;
    }
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    transition: color var(--transition);
}

.scroll-indicator:hover {
    color: var(--primary);
}

.scroll-text {
    font-size: 12px;
    font-weight: 500;
}

.scroll-mouse {
    width: 24px;
    height: 36px;
    border: 2px solid currentColor;
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}

.scroll-wheel {
    width: 4px;
    height: 6px;
    background: currentColor;
    border-radius: 2px;
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 1; transform: translateY(0); }
    50% { opacity: 0.5; transform: translateY(4px); }
}

/* 通用Section样式 */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
}

.section-header.light {
    color: var(--text-white);
}

.section-header.light .section-title {
    color: var(--text-white);
}

.section-header.light .section-desc {
    color: rgba(255, 255, 255, 0.7);
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    border-radius: 100px;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-tag.light {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-white);
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 36px;
    }
}

.section-title.light {
    color: var(--text-white);
}

.section-desc {
    font-size: 16px;
    color: var(--text-secondary);
}

/* 行业痛点 */
.painpoints {
    padding: var(--section-padding-mobile) 0;
    background: var(--bg-secondary);
}

@media (min-width: 768px) {
    .painpoints {
        padding: var(--section-padding) 0;
    }
}

.painpoints-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 640px) {
    .painpoints-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.painpoint-card {
    background: var(--bg-primary);
    padding: 32px 24px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

.painpoint-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-icon-wrapper {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.painpoint-card .card-icon {
    font-size: 28px;
}

.painpoint-card .card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.painpoint-card .card-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.card-highlight {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(239, 68, 68, 0.08);
    border-radius: var(--border-radius-sm);
}

.highlight-text {
    font-size: 13px;
    font-weight: 600;
    color: var(--error);
}

/* 核心产品 */
.product {
    position: relative;
    padding: var(--section-padding-mobile) 0;
    overflow: hidden;
}

@media (min-width: 768px) {
    .product {
        padding: var(--section-padding) 0;
    }
}

.product-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.product-gradient {
    position: absolute;
    inset: 0;
    background: var(--gray-900);
}

.pillar {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 80px;
}

@media (min-width: 1024px) {
    .pillar {
        grid-template-columns: 1fr 1fr;
        align-items: center;
        gap: 64px;
    }
    
    .pillar-2 {
        direction: rtl;
    }
    
    .pillar-2 > * {
        direction: ltr;
    }
}

.pillar:last-child {
    margin-bottom: 0;
}

.pillar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.pillar-number {
    font-size: 48px;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.1);
    line-height: 1;
}

.pillar-tag {
    padding: 6px 14px;
    background: rgba(37, 99, 235, 0.2);
    color: var(--primary-light);
    font-size: 13px;
    font-weight: 600;
    border-radius: 100px;
}

.pillar-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 4px;
}

.pillar-subtitle {
    font-size: 14px;
    color: var(--text-light);
    font-style: italic;
    margin-bottom: 16px;
}

.pillar-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 32px;
}

.pillar-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius);
    transition: all var(--transition);
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.12);
}

.feature-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: var(--border-radius-sm);
    font-size: 20px;
    flex-shrink: 0;
}

.feature-content h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 4px;
}

.feature-content p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
}

/* Pillar视觉区 */
.pillar-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-card {
    position: relative;
    width: 100%;
    max-width: 480px;
}

.visual-img {
    width: 100%;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
}

.visual-caption {
    margin-top: 16px;
    text-align: center;
    font-size: 16px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.88);
}

.visual-overlay {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.visual-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--primary-gradient);
    color: var(--text-white);
    font-size: 13px;
    font-weight: 600;
    border-radius: 100px;
    box-shadow: var(--shadow-lg);
}

/* Dashboard预览 */
.dashboard-preview {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.dashboard-header {
    padding: 16px 20px;
    background: var(--gray-100);
    border-bottom: 1px solid var(--border-color);
}

.dashboard-header span {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.dashboard-body {
    padding: 24px;
}

.chart-placeholder {
    height: 160px;
    background: var(--gray-50);
    border-radius: var(--border-radius);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 20px;
    margin-bottom: 20px;
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    width: 100%;
    max-width: 280px;
}

.bar {
    flex: 1;
    background: var(--primary-gradient);
    border-radius: 4px 4px 0 0;
    min-height: 20px;
}

.dashboard-stats {
    display: flex;
    justify-content: space-around;
}

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

.dstat-value {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.dstat-label {
    font-size: 13px;
    color: var(--text-light);
}

/* 解决方案 */
.solutions {
    padding: var(--section-padding-mobile) 0;
}

@media (min-width: 768px) {
    .solutions {
        padding: var(--section-padding) 0;
    }
}

.solutions-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .solutions-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.solution-card {
    padding: 32px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition);
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.solution-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--border-radius);
    margin-bottom: 24px;
    color: var(--primary);
}

.solution-icon svg {
    width: 32px;
    height: 32px;
}

.solution-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.solution-desc {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.solution-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.solution-list li {
    font-size: 14px;
    color: var(--text-secondary);
    padding-left: 20px;
    position: relative;
}

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

/* 标杆案例 */
.cases {
    padding: var(--section-padding-mobile) 0;
    background: var(--bg-secondary);
}

@media (min-width: 768px) {
    .cases {
        padding: var(--section-padding) 0;
    }
}

.cases-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    max-width: 960px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .cases-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

.case-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all var(--transition);
    position: relative;
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.case-card-featured {
    border: 2px solid var(--primary);
}

.case-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 6px 14px;
    background: var(--accent);
    color: var(--text-white);
    font-size: 12px;
    font-weight: 600;
    border-radius: 100px;
}

.case-header {
    padding: 24px 24px 16px;
    background: var(--gray-50);
    border-bottom: 1px solid var(--border-color);
}

.case-company {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 4px;
}

.case-product {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.case-content {
    padding: 24px;
}

.case-section {
    margin-bottom: 20px;
}

.case-section:last-of-type {
    margin-bottom: 0;
}

.case-section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.section-icon {
    font-size: 16px;
}

.case-section p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.case-result {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.result-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.result-value {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.result-highlight {
    display: flex;
    align-items: center;
    gap: 8px;
}

.value-before {
    color: var(--text-light);
    text-decoration: line-through;
}

.value-arrow {
    color: var(--primary);
}

.value-after {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
}

/* 商业模式 */
.business-model {
    position: relative;
    padding: var(--section-padding-mobile) 0;
    background: var(--gray-900);
    overflow: hidden;
}

@media (min-width: 768px) {
    .business-model {
        padding: var(--section-padding) 0;
    }
}

.business-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: center;
}

@media (min-width: 1024px) {
    .business-content {
        grid-template-columns: 1fr 1fr;
        gap: 80px;
    }
}

.business-text .section-title {
    margin-bottom: 20px;
}

.business-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 32px;
}

.business-desc strong {
    color: var(--text-white);
}

.business-benefits {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.benefit-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius);
}

.benefit-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: var(--border-radius-sm);
    font-size: 24px;
    flex-shrink: 0;
}

.benefit-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 4px;
}

.benefit-content p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
}

.business-visual {
    display: flex;
    justify-content: center;
}

.foundation-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-xl);
    padding: 40px;
    text-align: center;
    max-width: 360px;
    box-shadow: var(--shadow-xl);
}

.foundation-logo {
    font-size: 64px;
    margin-bottom: 16px;
}

.foundation-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.foundation-role {
    font-size: 14px;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 32px;
}

.foundation-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.flow-item {
    padding: 10px 16px;
    background: var(--gray-100);
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.flow-arrow {
    color: var(--primary);
    font-weight: 700;
}

/* 关于我们 */
.about {
    padding: var(--section-padding-mobile) 0;
}

@media (min-width: 768px) {
    .about {
        padding: var(--section-padding) 0;
    }
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.about-main {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}

.about-company {
    margin-bottom: 24px;
}

.about-logo {
    height: 64px;
    margin: 0 auto 16px;
}

.about-name {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.about-subtitle {
    font-size: 16px;
    color: var(--text-light);
}

.about-intro {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.about-intro strong {
    color: var(--primary);
}

.about-advantages {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 640px) {
    .about-advantages {
        grid-template-columns: repeat(2, 1fr);
    }
}

.advantage-card {
    padding: 32px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: all var(--transition);
}

.advantage-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.advantage-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.advantage-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.advantage-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-vision {
    background: var(--primary-gradient);
    border-radius: var(--border-radius-xl);
    padding: 40px;
    text-align: center;
}

.vision-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 12px;
}

.vision-text {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    max-width: 600px;
    margin: 0 auto;
}

.vision-text strong {
    color: var(--text-white);
}

/* 联系我们 / CTA */
.contact {
    position: relative;
    padding: var(--section-padding-mobile) 0;
    overflow: hidden;
}

@media (min-width: 768px) {
    .contact {
        padding: var(--section-padding) 0;
    }
}

.contact-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.contact-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% 100%, rgba(37, 99, 235, 0.1), transparent),
        radial-gradient(ellipse 50% 30% at 20% 50%, rgba(14, 165, 233, 0.08), transparent);
}

.contact-content {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.contact-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

@media (min-width: 768px) {
    .contact-title {
        font-size: 36px;
    }
}

.contact-desc {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

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

.contact-note {
    font-size: 14px;
    color: var(--text-light);
}

/* 页脚 */
.footer {
    background: var(--gray-900);
    padding: 64px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr 1.5fr;
    }
}

@media (min-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 2fr;
    }
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.footer-logo {
    height: 48px;
}

.footer-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-white);
}

.footer-name-en {
    font-size: 14px;
    color: var(--text-light);
}

.footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
    max-width: 320px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

@media (min-width: 640px) {
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

.footer-column-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-link-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-link-list a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

.footer-link-list a:hover {
    color: var(--text-white);
}

.footer-contact-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact-list li {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-label {
    font-size: 12px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-value {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom {
    padding: 24px 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.footer-legal a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition-fast);
}

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

.divider {
    color: rgba(255, 255, 255, 0.2);
}

.footer-social {
    display: flex;
    align-items: center;
    gap: 12px;
}

.social-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.social-icons {
    display: flex;
    gap: 8px;
}

.social-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition-fast);
}

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

.social-icon svg {
    width: 18px;
    height: 18px;
}

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

.footer-copyright p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

@media (min-width: 768px) {
    .footer-copyright {
        text-align: right;
    }
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* 选中文本样式 */
::selection {
    background: rgba(37, 99, 235, 0.2);
    color: var(--primary-dark);
}