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

:root {
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-400: #9ca3af;
    --color-gray-600: #4b5563;
    --color-gray-900: #111827;
    --color-blue-50: #eff6ff;
    --color-blue-200: #bfdbfe;
    --color-blue-500: #3b82f6;
    --color-blue-600: #2563eb;
    --color-indigo-500: #6366f1;
    --color-indigo-600: #4f46e5;
    --color-purple-200: #e9d5ff;
    --color-purple-400: #c084fc;
    --color-purple-500: #a855f7;
    --color-purple-600: #9333ea;
    --color-pink-50: #fdf2f8;
    --color-pink-200: #fbcfe8;
    --color-pink-400: #f472b6;
    --color-pink-500: #ec4899;
    --color-pink-600: #db2777;
    --color-green-400: #4ade80;
    --color-green-500: #22c55e;
    --color-green-600: #16a34a;
    --color-yellow-400: #facc15;
    --color-yellow-500: #eab308;
    --color-yellow-600: #ca8a04;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--color-white);
    color: var(--color-gray-900);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 容器 */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* 粒子背景 */
.animated-background {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    opacity: 0.3;
    pointer-events: none;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.03) 0%, rgba(168, 85, 247, 0.03) 100%);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-gray-100);
    padding: 1rem 0;
}

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

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

.logo-icon {
    width: 2rem;
    height: 2rem;
    background: linear-gradient(135deg, var(--color-blue-600), var(--color-indigo-600));
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.125rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--color-gray-900);
}

.footer-logo {
    background: linear-gradient(135deg, var(--color-blue-500), var(--color-indigo-500));
}

.nav-links {
    display: none;
    gap: 2rem;
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.nav-link {
    color: var(--color-gray-600);
    text-decoration: none;
    transition: color 0.3s;
}

.nav-link:hover {
    color: var(--color-gray-900);
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.5rem;
    border-radius: 9999px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid transparent;
    font-size: 1rem;
}

.btn-icon {
    width: 1.25rem;
    height: 1.25rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-blue-600), var(--color-indigo-600));
    color: white;
    border: none;
}

.btn-primary:hover {
    box-shadow: 0 20px 25px -5px rgba(59, 130, 246, 0.3), 0 10px 10px -5px rgba(59, 130, 246, 0.2);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--color-gray-700);
    border-color: var(--color-gray-200);
}

.btn-outline:hover {
    border-color: var(--color-blue-600);
    color: var(--color-blue-600);
}

.btn-white {
    background: white;
    color: var(--color-blue-600);
    border-color: var(--color-blue-200);
}

.btn-white:hover {
    background: var(--color-blue-50);
}

.btn-transparent {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-transparent:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* 徽章样式 */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.badge-pink {
    background-color: var(--color-pink-50);
    color: var(--color-pink-600);
}

.badge-blue {
    background-color: var(--color-blue-50);
    color: var(--color-blue-600);
}

.badge-purple {
    background-color: var(--color-purple-50);
    color: var(--color-purple-600);
}

.badge-green {
    background-color: var(--color-green-50);
    color: var(--color-green-600);
}

.badge-yellow {
    background-color: var(--color-yellow-50);
    color: var(--color-yellow-600);
}

/* 区块样式 */
.section {
    padding: 5rem 0;
    position: relative;
    z-index: 1;
}

.section-gray {
    background-color: var(--color-gray-50);
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 3.5rem;
    }
}

.section-description {
    font-size: 1.25rem;
    color: var(--color-gray-600);
    max-width: 32rem;
    margin: 0 auto;
}

/* 英雄区域 */
.hero {
    padding-top: 8rem;
    padding-bottom: 5rem;
    position: relative;
    z-index: 1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

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

.hero-title {
    font-size: 2.5rem;
    font-weight: bold;
    line-height: 1.2;
    color: var(--color-gray-900);
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.75rem;
    }
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-pink-500), var(--color-purple-500), var(--color-indigo-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-gray-600);
    margin-bottom: 2rem;
    line-height: 1.75;
}

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

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

.stats {
    display: flex;
    gap: 1.5rem;
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

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

.stat-icon {
    width: 1.25rem;
    height: 1.25rem;
}

.stat-icon.text-blue {
    color: var(--color-blue-500);
}

.stat-icon.text-yellow {
    color: var(--color-yellow-500);
}

/* 英雄图片 */
.hero-image {
    position: relative;
}

.image-container {
    background: linear-gradient(135deg, var(--color-pink-50), var(--color-purple-50), var(--color-indigo-50));
    border-radius: 1.5rem;
    padding: 1.5rem;
}

.image-wrapper {
    background: white;
    border-radius: 1.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    padding: 1rem;
    border: 1px solid var(--color-gray-100);
    overflow: hidden;
}

.image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}

.chat-preview {
    /* position: absolute; */
    bottom: 1rem;
    left: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-radius: 0.75rem;
    padding: 1rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.bot-avatar {
    width: 2.5rem;
    height: 2.5rem;
    background: linear-gradient(135deg, var(--color-pink-400), var(--color-purple-500));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.bot-info {
    flex: 1;
}

.bot-name {
    font-weight: 600;
    color: var(--color-gray-900);
    font-size: 0.875rem;
}

.bot-status {
    font-size: 0.75rem;
    color: var(--color-green-500);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.bot-status::before {
    content: '';
    width: 0.5rem;
    height: 0.5rem;
    background: var(--color-green-500);
    border-radius: 50%;
}

.chat-message {
    background: var(--color-gray-100);
    border-radius: 0.5rem;
    padding: 0.75rem;
}

.chat-message p {
    font-size: 0.875rem;
    color: var(--color-gray-700);
    margin: 0;
}

/* 功能特性网格 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
    border: 1px solid var(--color-gray-100);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px rgba(59, 130, 246, 0.1);
}

.feature-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: transform 0.3s;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.icon-pink {
    background: linear-gradient(135deg, var(--color-pink-100), var(--color-pink-200));
    color: var(--color-pink-600);
}

.icon-purple {
    background: linear-gradient(135deg, var(--color-purple-100), var(--color-purple-200));
    color: var(--color-purple-600);
}

.icon-blue {
    background: linear-gradient(135deg, var(--color-blue-100), var(--color-blue-200));
    color: var(--color-blue-600);
}

.icon-green {
    background: linear-gradient(135deg, var(--color-green-100), var(--color-green-200));
    color: var(--color-green-600);
}

.icon-yellow {
    background: linear-gradient(135deg, var(--color-yellow-100), var(--color-yellow-200));
    color: var(--color-yellow-600);
}

.icon-indigo {
    background: linear-gradient(135deg, var(--color-indigo-100), var(--color-indigo-200));
    color: var(--color-indigo-600);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 0.75rem;
}

.feature-description {
    color: var(--color-gray-600);
    line-height: 1.75;
}

/* 服务网格 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

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

.service-card {
    padding: 2rem;
    border-radius: 1.5rem;
    border: 1px solid var(--color-gray-100);
    transition: all 0.3s;
}

.service-card:hover {
    box-shadow: 0 20px 25px -5px rgba(59, 130, 246, 0.1);
}

.service-blue {
    background: linear-gradient(135deg, var(--color-blue-50), var(--color-indigo-50));
}

.service-purple {
    background: linear-gradient(135deg, var(--color-pink-50), var(--color-purple-50));
}

.service-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--color-blue-500), var(--color-indigo-600));
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 1.5rem;
}

.service-purple .service-icon {
    background: linear-gradient(135deg, var(--color-pink-500), var(--color-purple-600));
}

.service-title {
    font-size: 1.875rem;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
}

.service-description {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    margin-bottom: 1.5rem;
}

.service-list {
    list-style: none;
    margin-bottom: 2rem;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-gray-700);
    padding: 0.5rem 0;
}

.check-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-green-500);
    flex-shrink: 0;
}

.service-btn {
    width: 100%;
}

/* 企业文化网格 */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.culture-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.culture-icon {
    width: 5rem;
    height: 5rem;
    background: linear-gradient(135deg, var(--color-green-100), var(--color-blue-100));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-green-600);
    margin: 0 auto 1.5rem;
}

.culture-title {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
}

.culture-description {
    color: var(--color-gray-600);
    line-height: 1.75;
}

/* 定价网格 */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 80rem;
    margin: 0 auto;
}

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

.pricing-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    position: relative;
    border: 1px solid var(--color-gray-100);
}

.pricing-popular {
    border: 2px solid var(--color-pink-500);
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -1rem;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--color-pink-500), var(--color-purple-500));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.pricing-title {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.pricing-description {
    color: var(--color-gray-600);
    margin-bottom: 1.5rem;
}

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

.price-amount {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--color-gray-900);
}

.price-period {
    color: var(--color-gray-500);
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-gray-700);
    padding: 0.5rem 0;
}

.pricing-btn {
    width: 100%;
}

.pricing-popular .pricing-btn {
    background: linear-gradient(135deg, var(--color-pink-500), var(--color-purple-500));
    color: white;
    border: none;
}

/* CTA 区域 */
.cta-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--color-blue-600), var(--color-purple-600), var(--color-pink-500));
    position: relative;
    z-index: 1;
}

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

.cta-title {
    font-size: 2.5rem;
    font-weight: bold;
    color: white;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .cta-title {
        font-size: 3.5rem;
    }
}

.cta-description {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    max-width: 32rem;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
}

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

/* 页脚 */
.footer {
    background: var(--color-gray-900);
    color: white;
    padding: 3rem 0;
    position: relative;
    z-index: 1;
}

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

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-description {
    color: var(--color-gray-400);
}

.footer-title {
    font-weight: bold;
    margin-bottom: 1rem;
}

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

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

.footer-links a {
    color: var(--color-gray-400);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid var(--color-gray-800);
    padding-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

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

.copyright {
    color: var(--color-gray-400);
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
}

.footer-legal a {
    color: var(--color-gray-400);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-legal a:hover {
    color: white;
}

/* 响应式调整 */
@media (max-width: 640px) {
    .container {
        padding: 0 1rem;
    }

    .section {
        padding: 3rem 0;
    }

    .hero {
        padding-top: 6rem;
        padding-bottom: 3rem;
    }

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

    .section-description {
        font-size: 1rem;
    }

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

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

    .service-card {
        padding: 1.5rem;
    }

    .service-title {
        font-size: 1.5rem;
    }

    .pricing-card {
        padding: 1.5rem;
    }

    .cta-section {
        padding: 3rem 0;
    }

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

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

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

.feature-card,
.service-card,
.culture-card,
.pricing-card {
    animation: fadeInUp 0.6s ease-out;
}

/* 辅助颜色 */
.text-blue {
    color: var(--color-blue-500);
}

.text-green {
    color: var(--color-green-500);
}

.text-yellow {
    color: var(--color-yellow-500);
}