/* 滚木科技 - 蓝色简约大气风格 */

:root {
    --primary-blue: #2563eb;
    --secondary-blue: #1e40af;
    --light-blue: #3b82f6;
    --accent-blue: #60a5fa;
    --soft-blue: #dbeafe;
    --bg-white: #ffffff;
    --bg-gray: #f8fafc;
    --bg-light: #f1f5f9;
    --text-dark: #1e293b;
    --text-gray: #475569;
    --text-light: #64748b;
    --border-light: #e2e8f0;
    --shadow-light: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-large: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-white);
    color: var(--text-dark);
    line-height: 1.6;
    font-size: 16px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    padding: 0 2rem;
    box-shadow: var(--shadow-light);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.logo-text {
    color: var(--primary-blue);
}

.logo-accent {
    color: var(--secondary-blue);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-gray);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-blue);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* 主页区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    line-height: 1.1;
}

.accent {
    color: var(--primary-blue);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

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

.btn-primary,
.btn-secondary {
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

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

.btn-secondary:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* 科技数据可视化插画 */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.tech-illustration {
    width: 400px;
    height: 400px;
    position: relative;
}

.data-visualization {
    width: 100%;
    height: 100%;
    position: relative;
    animation: techFloat 8s ease-in-out infinite;
}

@keyframes techFloat {

    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
    }

    50% {
        transform: translateY(-15px) rotate(2deg);
    }
}

/* 数据流动线条 */
.data-flow {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.flow-line {
    position: absolute;
    background: linear-gradient(90deg, transparent, var(--primary-blue), transparent);
    border-radius: 2px;
    opacity: 0.6;
    animation: dataFlow 3s ease-in-out infinite;
}

.flow-1 {
    width: 150px;
    height: 2px;
    top: 30%;
    left: 10%;
    transform: rotate(15deg);
    animation-delay: 0s;
}

.flow-2 {
    width: 120px;
    height: 2px;
    top: 60%;
    right: 15%;
    transform: rotate(-25deg);
    animation-delay: 1s;
}

.flow-3 {
    width: 180px;
    height: 2px;
    bottom: 25%;
    left: 20%;
    transform: rotate(45deg);
    animation-delay: 2s;
}

@keyframes dataFlow {

    0%,
    100% {
        opacity: 0.3;
        transform: scale(1) rotate(var(--rotation, 0deg));
    }

    50% {
        opacity: 0.8;
        transform: scale(1.1) rotate(var(--rotation, 0deg));
    }
}

/* 数据节点 */
.data-nodes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.node {
    position: absolute;
    width: 60px;
    height: 60px;
    background: white;
    border: 2px solid var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-medium);
    animation: nodePulse 4s ease-in-out infinite;
}

.node-icon {
    font-size: 1.5rem;
    z-index: 2;
}

.node-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent-blue);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.node-1 {
    top: 10%;
    left: 15%;
    animation-delay: 0s;
}

.node-2 {
    top: 15%;
    right: 10%;
    animation-delay: 1s;
}

.node-3 {
    bottom: 30%;
    left: 5%;
    animation-delay: 2s;
}

.node-4 {
    bottom: 10%;
    right: 20%;
    animation-delay: 3s;
}

@keyframes nodePulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    100% {
        transform: scale(2);
        opacity: 0;
    }
}

/* 中心处理器 */
.central-processor {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
}

.processor-core {
    width: 100%;
    height: 100%;
    position: relative;
    animation: coreRotate 20s linear infinite;
}

.core-ring {
    position: absolute;
    border: 2px solid;
    border-radius: 50%;
    animation: ringRotate 15s linear infinite;
}

.ring-1 {
    width: 100%;
    height: 100%;
    border-color: var(--primary-blue);
    opacity: 0.3;
    animation-direction: normal;
}

.ring-2 {
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
    border-color: var(--accent-blue);
    opacity: 0.5;
    animation-direction: reverse;
    animation-duration: 12s;
}

.ring-3 {
    width: 60%;
    height: 60%;
    top: 20%;
    left: 20%;
    border-color: var(--light-blue);
    opacity: 0.7;
    animation-duration: 8s;
}

.core-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-large);
}

.tech-logo {
    color: white;
    font-weight: 700;
    font-size: 1rem;
}

@keyframes coreRotate {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@keyframes ringRotate {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* 数据粒子 */
.data-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--accent-blue);
    border-radius: 50%;
    animation: particleFloat 6s ease-in-out infinite;
}

.particle-1 {
    top: 20%;
    left: 30%;
    animation-delay: 0s;
}

.particle-2 {
    top: 40%;
    right: 25%;
    animation-delay: 1s;
}

.particle-3 {
    bottom: 35%;
    left: 40%;
    animation-delay: 2s;
}

.particle-4 {
    top: 70%;
    left: 60%;
    animation-delay: 3s;
}

.particle-5 {
    top: 25%;
    left: 70%;
    animation-delay: 4s;
}

.particle-6 {
    bottom: 50%;
    right: 40%;
    animation-delay: 5s;
}

@keyframes particleFloat {

    0%,
    100% {
        transform: translateY(0px) scale(1);
        opacity: 0.5;
    }

    33% {
        transform: translateY(-20px) scale(1.2);
        opacity: 1;
    }

    66% {
        transform: translateY(-10px) scale(0.8);
        opacity: 0.7;
    }
}

/* 通用区域样式 */
.section {
    padding: 5rem 0;
    position: relative;
}

.section:nth-child(even) {
    background-color: var(--bg-gray);
}

.dark-section {
    background: var(--bg-light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
    font-weight: 700;
}

/* 关于我们区域 */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.about-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-light);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-large);
    border-color: var(--accent-blue);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--soft-blue);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.about-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 600;
}

.about-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* 服务区域 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
    border-color: var(--primary-blue);
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.service-header h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    font-weight: 600;
}

.service-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    background: var(--soft-blue);
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-card p {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-card ul {
    list-style: none;
}

.service-card li {
    padding: 0.5rem 0;
    color: var(--text-gray);
    position: relative;
    padding-left: 1.5rem;
}

.service-card li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

/* 产品中心样式 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.product-card {
    background: white;
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-light);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
    border-color: var(--primary-blue);
}

.product-image {
    text-align: center;
    margin-bottom: 1.5rem;
}

.product-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto;
    border-radius: 16px;
    background: var(--soft-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.product-info h3 {
    color: var(--text-dark);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    text-align: center;
    font-weight: 600;
}

.product-category {
    color: var(--primary-blue);
    font-size: 0.9rem;
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 600;
}

.product-desc {
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.feature-tag {
    background: var(--soft-blue);
    color: var(--primary-blue);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.product-status {
    text-align: center;
}

.status-badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.status-badge.available {
    background: #dcfce7;
    color: #166534;
}

.status-badge.developing {
    background: #fef3c7;
    color: #92400e;
}

/* 技术栈区域 */
.tech-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.tech-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
}

.tech-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-blue);
}

.tech-visual {
    margin-bottom: 1.5rem;
}

.tech-circle {
    width: 100px;
    height: 100px;
    margin: 0 auto;
    border: 3px solid var(--primary-blue);
    border-radius: 50%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--soft-blue);
}

.tech-circle::before {
    content: '⚡';
    font-size: 2rem;
}

.tech-item h4 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.tech-item p {
    color: var(--text-gray);
}

/* 帮助中心样式 */
.help-container {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.help-sidebar {
    background: white;
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 1.5rem;
    height: fit-content;
    box-shadow: var(--shadow-light);
}

.help-category {
    padding: 1rem;
    margin-bottom: 0.5rem;
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.help-category:hover {
    border-color: var(--border-light);
    background: var(--bg-gray);
}

.help-category.active {
    background: var(--soft-blue);
    border-color: var(--primary-blue);
}

.help-category h4 {
    color: var(--text-dark);
    margin: 0;
    font-size: 1rem;
    font-weight: 500;
}

.help-category.active h4 {
    color: var(--primary-blue);
    font-weight: 600;
}

.help-content {
    background: white;
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-light);
}

.faq-group {
    display: none;
}

.faq-group.active {
    display: block;
}

.faq-item {
    margin-bottom: 1rem;
    border: 1px solid var(--border-light);
    border-radius: 8px;
    overflow: hidden;
}

.faq-question {
    background: var(--bg-gray);
    padding: 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: var(--soft-blue);
}

.faq-question h5 {
    margin: 0;
    color: var(--text-dark);
    font-size: 1.1rem;
    font-weight: 600;
}

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

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 1rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 1rem;
    max-height: 200px;
}

.faq-answer p {
    margin: 0;
    color: var(--text-gray);
    line-height: 1.6;
}

/* 联系我们区域 */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.contact-info {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-light);
}

.contact-info h3 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-weight: 600;
}

.contact-info p {
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.contact-item {
    display: flex;
    margin: 1rem 0;
    align-items: center;
}

.contact-label {
    font-weight: 600;
    color: var(--primary-blue);
    min-width: 80px;
    margin-right: 1rem;
}

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-light);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    background: var(--bg-gray);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    color: var(--text-dark);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    background: white;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-logo {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.beian-link {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.beian-link:hover {
    color: var(--accent-blue);
}

/* 移除网格背景和其他赛博朋克效果 */
.cyber-grid {
    display: none;
}

a {
    color: inherit;
    /* 继承父元素的文本颜色 */
    text-decoration: none;
    /* 移除下划线 */
}

/* ================================
   帮助中心页面专用样式
   ================================ */

/* 帮助中心专用导航样式 */
.back-link {
    color: var(--text-gray);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.back-link:hover {
    color: var(--primary-blue);
    background-color: var(--soft-blue);
}

/* 帮助中心主体 */
.help-page {
    padding-top: 70px;
    min-height: 100vh;
    background: var(--bg-gray);
}

/* 帮助中心头部 */
.help-header {
    text-align: center;
    padding: 3rem 0;
    background: white;
    margin-bottom: 2rem;
}

.help-header h1 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.help-header p {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.search-box {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
    border: 2px solid var(--border-light);
    border-radius: 12px;
    overflow: hidden;
    background: white;
    box-shadow: var(--shadow-light);
}

.search-box input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    outline: none;
    font-size: 1rem;
    background: transparent;
}

.search-box input::placeholder {
    color: var(--text-light);
}

.search-btn {
    padding: 1rem 1.5rem;
    border: none;
    background: var(--primary-blue);
    color: white;
    cursor: pointer;
    font-size: 1.2rem;
    transition: background-color 0.3s ease;
}

.search-btn:hover {
    background: var(--secondary-blue);
}

/* 帮助中心主要内容 */
.help-main {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
    padding-bottom: 3rem;
}

/* 帮助中心侧边栏 */
.help-sidebar {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    height: fit-content;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-light);
}

.category-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.help-category {
    display: flex;
    align-items: center;
    padding: 1rem;
    border: 1px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.help-category:hover {
    border-color: var(--border-light);
    background: var(--bg-gray);
}

.help-category.active {
    background: var(--soft-blue);
    border-color: var(--primary-blue);
}

.category-icon {
    font-size: 1.5rem;
    margin-right: 1rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border-radius: 10px;
}

.help-category.active .category-icon {
    background: white;
}

.category-info h4 {
    color: var(--text-dark);
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.help-category.active .category-info h4 {
    color: var(--primary-blue);
}

.category-count {
    font-size: 0.8rem;
    color: var(--text-light);
}

.help-category.active .category-count {
    color: var(--primary-blue);
}

/* 帮助中心内容区域 */
.help-content {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-light);
}

.faq-group {
    display: none;
}

.faq-group.active {
    display: block;
}

.category-title {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-light);
}

.category-title h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.category-title p {
    color: var(--text-gray);
    font-size: 1.1rem;
}

/* FAQ项目样式 */
.faq-item {
    margin-bottom: 1rem;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-light);
}

.faq-question {
    background: var(--bg-gray);
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: var(--soft-blue);
}

.faq-question h5 {
    margin: 0;
    color: var(--text-dark);
    font-size: 1.1rem;
    font-weight: 600;
}

.faq-toggle {
    color: var(--primary-blue);
    font-size: 1.5rem;
    font-weight: bold;
    transition: transform 0.3s ease;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 50%;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

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

.faq-item.active .faq-answer {
    max-height: 1000px;
}

.answer-content {
    padding: 2rem;
    background: white;
}

.answer-content p {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.answer-content ul,
.answer-content ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.answer-content li {
    color: var(--text-gray);
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.answer-content strong {
    color: var(--text-dark);
    font-weight: 600;
}

.answer-content h6 {
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

/* 答案标签 */
.answer-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.tag {
    background: var(--soft-blue);
    color: var(--primary-blue);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* 帮助中心特殊内容样式 */
.deployment-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.option {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.option h6 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.version-table {
    background: var(--bg-light);
    border-radius: 12px;
    overflow: hidden;
    margin: 1.5rem 0;
}

.version-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-light);
    align-items: center;
}

.version-row:last-child {
    border-bottom: none;
}

.version-name {
    font-weight: 600;
    color: var(--text-dark);
}

.version-users {
    color: var(--text-gray);
}

.version-price {
    color: var(--primary-blue);
    font-weight: 600;
}

/* 时间线样式 */
.timeline {
    margin: 1.5rem 0;
}

.timeline-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 12px;
    border-left: 4px solid var(--primary-blue);
}

.timeline-icon {
    font-size: 1.5rem;
    margin-right: 1rem;
    margin-top: 0.25rem;
}

.timeline-content h6 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.timeline-content span {
    color: var(--primary-blue);
    font-weight: 600;
    background: white;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.9rem;
}

.timeline-content p {
    margin-top: 0.5rem;
    margin-bottom: 0;
}

/* 服务网格 */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.service-item {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-light);
}

.service-item h6 {
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.service-item p {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin: 0;
}

/* 联系方式 */
.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.contact-icon {
    font-size: 1.5rem;
    margin-right: 1rem;
    margin-top: 0.25rem;
}

.contact-info h6 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.contact-info p {
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-info span {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* 流程步骤 */
.process-flow {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 12px;
}

.process-step {
    display: flex;
    align-items: center;
    min-width: 150px;
}

.step-number {
    width: 30px;
    height: 30px;
    background: var(--primary-blue);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-right: 1rem;
    flex-shrink: 0;
}

.step-content h6 {
    color: var(--text-dark);
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.step-content p {
    color: var(--text-gray);
    font-size: 0.8rem;
    margin: 0;
}

.process-arrow {
    color: var(--primary-blue);
    font-weight: bold;
    font-size: 1.2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-medium);
        padding: 2rem 0;
        border-top: 1px solid var(--border-light);
    }

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

    .hero {
        flex-direction: column;
        text-align: center;
        padding: 2rem 1rem;
        min-height: auto;
        padding-top: 5rem;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-visual {
        margin-top: 2rem;
    }

    .tech-illustration {
        width: 300px;
        height: 300px;
    }

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

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

    .services-grid,
    .about-grid,
    .tech-showcase,
    .products-grid {
        grid-template-columns: 1fr;
    }

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

    .help-sidebar {
        order: 2;
    }

    .help-content {
        order: 1;
    }

    .help-header h1 {
        font-size: 2rem;
    }

    .deployment-options {
        grid-template-columns: 1fr;
    }

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

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

    .process-flow {
        flex-direction: column;
        align-items: stretch;
    }

    .process-arrow {
        transform: rotate(90deg);
        align-self: center;
    }

    .version-table .version-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
        text-align: center;
    }
}

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

    .section {
        padding: 3rem 0;
    }

    .container {
        padding: 0 1rem;
    }

    .about-card,
    .service-card,
    .product-card,
    .contact-info,
    .contact-form {
        padding: 1.5rem;
    }

    .help-header {
        padding: 2rem 0;
    }

    .help-header h1 {
        font-size: 1.8rem;
    }

    .search-box {
        flex-direction: column;
    }

    .help-content {
        padding: 1.5rem;
    }

    .answer-content {
        padding: 1.5rem;
    }
}