/* 记账宝官网样式 */

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

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --background: #f7fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --success: #48bb78;
    --warning: #ed8936;
    --danger: #f56565;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

html, body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    background: var(--background);
    line-height: 1.6;
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s;
}

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

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

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

.btn-xlarge {
    padding: 18px 40px;
    font-size: 18px;
}

/* 导航栏 */
.header {
    background: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-icon {
    font-size: 28px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

.nav-actions {
    display: flex;
    gap: 12px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s;
}

/* Hero区域 */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-title .highlight {
    color: #ffeaa7;
}

.hero-subtitle {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

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

.hero-actions .btn-outline {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

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

.stat-item .stat-number {
    font-size: 32px;
    font-weight: 700;
    display: block;
}

.stat-item .stat-label {
    font-size: 14px;
    opacity: 0.8;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.demo-mockup {
    background: rgba(255, 255, 255, 0.15);
    padding: 40px;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.demo-mockup img {
    border-radius: var(--radius-md);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* 通用区块样式 */
section {
    padding: 80px 0;
}

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

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

/* 功能亮点 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: var(--radius-md);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 15px;
}

/* 适用行业 */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.industry-item {
    background: var(--card-bg);
    padding: 30px 20px;
    border-radius: var(--radius-md);
    text-align: center;
    transition: transform 0.3s;
}

.industry-item:hover {
    transform: translateY(-5px);
}

.industry-icon {
    font-size: 40px;
    margin-bottom: 12px;
    display: block;
}

.industry-name {
    font-size: 15px;
    font-weight: 500;
}

/* 客户评价 */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: var(--card-bg);
    padding: 36px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.testimonial-quote {
    font-size: 60px;
    color: var(--primary-color);
    opacity: 0.2;
    line-height: 1;
    margin-bottom: 16px;
    display: block;
}

.testimonial-text {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 24px;
}

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

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 18px;
}

.author-name {
    font-weight: 600;
    font-size: 16px;
}

.author-company {
    color: var(--text-muted);
    font-size: 14px;
}

/* CTA区域 */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
}

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

.cta-section .btn:hover {
    background: rgba(255, 255, 255, 0.95);
}

/* 页脚 */
.footer {
    background: #1a202c;
    color: #cbd5e0;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}

.footer-desc {
    color: #a0aec0;
    line-height: 1.7;
}

.footer-title {
    color: white;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #a0aec0;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid #2d3748;
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links-inline {
    display: flex;
    gap: 16px;
    align-items: center;
}

.footer-links-inline a {
    color: #a0aec0;
}

/* 页面头部 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.page-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 12px;
}

.page-subtitle {
    font-size: 18px;
    opacity: 0.9;
}

/* 功能详情 */
.feature-detail-section {
    background: white;
}

.feature-detail-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 60px 0;
    border-bottom: 1px solid var(--border-color);
}

.feature-detail-item:last-child {
    border-bottom: none;
}

.feature-detail-item.reverse {
    direction: rtl;
}

.feature-detail-item.reverse > * {
    direction: ltr;
}

.feature-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
}

.feature-detail-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
}

.feature-detail-desc {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 8px 0;
    color: var(--text-secondary);
}

.feature-mockup {
    background: var(--background);
    padding: 60px 40px;
    border-radius: var(--radius-md);
    text-align: center;
}

.placeholder-icon {
    font-size: 80px;
}

/* 更多功能 */
.more-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.more-feature-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.more-feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.more-feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.more-feature-card p {
    color: var(--text-secondary);
}

/* 价格方案 */
.pricing-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 50px;
}

.pricing-tab {
    padding: 12px 32px;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.pricing-tab:hover {
    border-color: var(--primary-color);
}

.pricing-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.discount-badge {
    background: var(--danger);
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    margin-left: 8px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.pricing-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border: 3px solid var(--primary-color);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.popular-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 30px;
}

.pricing-name {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.pricing-desc {
    color: var(--text-secondary);
}

.pricing-price {
    text-align: center;
    margin-bottom: 30px;
}

.price-currency {
    font-size: 24px;
    font-weight: 600;
}

.price-number {
    font-size: 48px;
    font-weight: 800;
}

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

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li.disabled {
    color: var(--text-muted);
    text-decoration: line-through;
}

.pricing-card .btn {
    width: 100%;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 24px;
    background: none;
    border: none;
    text-align: left;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-icon {
    font-size: 24px;
    font-weight: 300;
    transition: transform 0.3s;
}

.faq-answer {
    padding: 0 24px 24px;
    color: var(--text-secondary);
    line-height: 1.8;
    display: none;
}

/* 客户案例 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.case-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s;
}

.case-card:hover {
    transform: translateY(-8px);
}

.case-image {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 60px 40px;
    text-align: center;
}

.case-icon {
    font-size: 64px;
}

.case-content {
    padding: 32px;
}

.case-category {
    display: inline-block;
    background: #e0e7ff;
    color: var(--primary-color);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 16px;
}

.case-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
}

.case-desc {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.case-stats {
    display: flex;
    gap: 32px;
}

.case-stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}

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

/* 关于我们 */
.about-section {
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.9;
    margin-bottom: 16px;
}

.about-placeholder {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 80px;
    border-radius: var(--radius-lg);
    text-align: center;
}

.placeholder-icon {
    font-size: 80px;
}

/* 价值观 */
.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.value-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.value-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.value-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.value-card p {
    color: var(--text-secondary);
}

/* 发展历程 */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    gap: 40px;
    margin-bottom: 50px;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-year {
    width: 100px;
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
}

.timeline-content {
    flex: 1;
    background: var(--card-bg);
    padding: 24px 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: var(--shadow-sm);
}

.timeline-item:nth-child(odd) .timeline-content::before {
    right: -58px;
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: -58px;
}

.timeline-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-content p {
    color: var(--text-secondary);
}

/* 联系信息 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.contact-item {
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.contact-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.contact-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.contact-item p {
    color: var(--text-secondary);
    font-size: 16px;
}