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

:root {
    --primary-color: #3b82f6;
    --primary-dark: #1e40af;
    --dark-bg: #0f172a;
    --dark-nav: #1e293b;
    --text-light: #f8fafc;
    --text-gray: #94a3b8;
    --white: #ffffff;
    --border-color: #e2e8f0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #334155;
}

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

/* 导航栏 */
.navbar {
    background: var(--dark-bg);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-icon {
    font-size: 24px;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 15px;
    transition: color 0.3s;
}

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

.nav-menu .fa-chevron-down {
    font-size: 10px;
    margin-left: 5px;
}

/* 下拉菜单 */
.dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--dark-nav);
    min-width: 250px;
    border-radius: 12px;
    padding: 15px;
    padding-top: 25px;
    margin-top: 0;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.dropdown-content::before {
    content: "";
    position: absolute;
    top: -15px;
    left: 0;
    right: 0;
    height: 20px;
    background: transparent;
}

.dropdown:hover .dropdown-content {
    display: block;
    opacity: 1;
    visibility: visible;
}

.dropdown-content a {
    display: block;
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 5px;
    line-height: 1.4;
}

.dropdown-content a:hover {
    background: rgba(59, 130, 246, 0.1);
}

.dropdown-content a i {
    margin-right: 10px;
    width: 20px;
}

.dropdown-content a small {
    color: var(--text-gray);
    font-size: 12px;
}

.dropdown-content .badge {
    background: var(--primary-color);
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 8px;
}

.dropdown-grid {
    grid-template-columns: repeat(3, 1fr);
    min-width: 400px;
}

.dropdown:hover .dropdown-grid {
    display: grid;
}

.dropdown-grid a {
    text-align: center;
    padding: 15px 10px;
}

.dropdown-grid a i {
    display: block;
    margin: 0 auto 8px;
    font-size: 20px;
}

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

.btn-login {
    color: var(--text-light);
    text-decoration: none;
    padding: 8px 20px;
}

.btn-register {
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 500;
    transition: background 0.3s;
}

.btn-register:hover {
    background: var(--primary-dark);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--white);
}

/
* Hero区域 */
.hero {
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1e3a5f 50%, var(--primary-color) 100%);
    min-height: 600px;
    padding: 150px 20px 80px;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1.5" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="70" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    background: rgba(59, 130, 246, 0.3);
    color: var(--primary-color);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 30px;
}

.hero h1 {
    font-size: 48px;
    color: var(--white);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 50px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 50px;
}

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

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--white);
}

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

.hero-icons {
    display: flex;
    justify-content: center;
    gap: 30px;
}

.icon-item {
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 20px;
}

/* 通用按钮 */
.btn-primary {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    padding: 14px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    display: inline-block;
    background: transparent;
    color: var(--primary-color);
    padding: 14px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    border: 2px solid var(--primary-color);
    transition: all 0.3s;
}

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

.btn-outline {
    display: inline-block;
    background: transparent;
    color: var(--primary-color);
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    border: 2px solid var(--border-color);
    transition: all 0.3s;
}

.btn-outline:hover {
    border-color: var(--primary-color);
    background: rgba(59, 130, 246, 0.05);
}

/* 区域标题 */
.section-badge {
    display: inline-block;
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 15px;
    text-align: center;
}

.section-subtitle {
    color: var(--text-gray);
    font-size: 16px;
    text-align: center;
    margin-bottom: 50px;
}


/* 开始使用区域 */
.get-started {
    padding: 100px 0;
    background: var(--white);
}

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

.get-started-text h2 {
    font-size: 32px;
    color: #1e293b;
    margin-bottom: 20px;
    line-height: 1.4;
}

.get-started-text p {
    color: var(--text-gray);
    margin-bottom: 25px;
    line-height: 1.8;
}

.feature-tags {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.feature-tags span {
    color: #10b981;
    font-size: 14px;
}

.feature-tags i {
    margin-right: 6px;
}

.cta-buttons {
    display: flex;
    gap: 15px;
}

/* iPhone 真实手机样式 */
.phone-mockup {
    width: 280px;
    background: #1c1c1e;
    border-radius: 45px;
    padding: 12px;
    margin: 0 auto;
    box-shadow: 0 25px 50px rgba(0,0,0,0.4), inset 0 0 0 3px #2c2c2e;
}

.phone-notch {
    width: 120px;
    height: 28px;
    background: #1c1c1e;
    border-radius: 0 0 18px 18px;
    margin: 0 auto 8px;
}

.phone-screen {
    background: #f2f2f7;
    border-radius: 35px;
    overflow: hidden;
    min-height: 450px;
}

.phone-status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px 10px;
    background: #f2f2f7;
}

.phone-status-bar .time {
    font-size: 16px;
    font-weight: 600;
    color: #000;
}

.phone-status-bar .icons {
    display: flex;
    gap: 5px;
    color: #000;
    font-size: 14px;
}

.phone-sms-header {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    background: #f2f2f7;
}

.phone-sms-header .back-btn {
    color: #007aff;
    font-size: 22px;
    margin-right: 15px;
}

.phone-sms-header .contact-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
}

.phone-sms-header .avatar {
    width: 55px;
    height: 55px;
    background: #c7c7cc;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #8e8e93;
    font-size: 26px;
    margin-bottom: 6px;
}

.phone-sms-header .phone-number {
    font-size: 13px;
    color: #000;
}

.phone-sms-time {
    text-align: center;
    padding: 15px;
    color: #8e8e93;
    font-size: 12px;
}

.phone-sms-messages {
    padding: 0 15px 20px;
}

.phone-sms-bubble {
    background: #e5e5ea;
    padding: 12px 16px;
    border-radius: 20px;
    margin-bottom: 10px;
    color: #000;
    font-size: 15px;
    line-height: 1.5;
    max-width: 90%;
}

.phone-sms-bubble a {
    color: #007aff;
    text-decoration: none;
}

.phone-sms-bubble.sent {
    background: #007aff;
    color: white;
    margin-left: auto;
}

.phone-sms-bubble.sent a {
    color: #b3d9ff;
}

/* 旧样式兼容 - 保留message-preview */
.message-preview {
    background: var(--white);
    border-radius: 15px;
    padding: 15px;
    margin-top: 50px;
}

.msg-header {
    font-size: 12px;
    color: var(--text-gray);
    margin-bottom: 8px;
}

.msg-content {
    font-size: 14px;
    color: #1e293b;
}

/* 为什么选择我们 */
.why-choose {
    padding: 100px 0;
    background: #f8fafc;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.why-item {
    text-align: center;
    padding: 40px 30px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}

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

.why-icon {
    width: 70px;
    height: 70px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: var(--primary-color);
}

.why-item h3 {
    font-size: 20px;
    color: #1e293b;
    margin-bottom: 10px;
}

.why-item p {
    color: var(--text-gray);
    font-size: 14px;
}

/* 产品特点 */
.features {
    padding: 100px 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    padding: 35px 25px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.feature-card:hover {
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    border-color: transparent;
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
}

.feature-icon.blue {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.feature-icon.green {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.feature-icon.purple {
    background: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
}

.feature-icon.orange {
    background: rgba(249, 115, 22, 0.1);
    color: #f97316;
}

.feature-card h3 {
    font-size: 18px;
    color: #1e293b;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-gray);
    font-size: 14px;
    line-height: 1.6;
}

/* 
定价卡片 */
.pricing-preview {
    padding: 100px 0;
    background: #f8fafc;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.price-card {
    background: var(--white);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    border: 2px solid var(--border-color);
    position: relative;
    transition: all 0.3s;
}

.price-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.price-card.featured {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.price-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: var(--white);
    padding: 5px 20px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.price-card h3 {
    font-size: 22px;
    color: #1e293b;
    margin-bottom: 20px;
}

.price {
    font-size: 42px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.price span {
    font-size: 16px;
    color: var(--text-gray);
    font-weight: 400;
}

.price-desc {
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 30px;
}

.price-card ul {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.price-card ul li {
    padding: 10px 0;
    color: #64748b;
    font-size: 14px;
}

.price-card ul li i {
    color: #10b981;
    margin-right: 10px;
}

/* 客户信任 */
.trust-section {
    padding: 80px 0;
    background: var(--dark-bg);
    text-align: center;
}

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

.trust-section .section-subtitle {
    color: var(--text-gray);
}

.trust-icons {
    display: flex;
    justify-content: center;
    gap: 50px;
}

.trust-item {
    width: 80px;
    height: 80px;
    background: rgba(255,255,255,0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--text-gray);
}

/* 联系方式 */
.contact-section {
    padding: 100px 0;
    background: var(--white);
}

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

.contact-card {
    text-align: center;
    padding: 40px 30px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.contact-card:hover {
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.contact-icon {
    width: 70px;
    height: 70px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: var(--primary-color);
}

.contact-icon.whatsapp {
    background: rgba(37, 211, 102, 0.1);
    color: #25d366;
}

.contact-icon.telegram {
    background: rgba(0, 136, 204, 0.1);
    color: #0088cc;
}

.contact-card h3 {
    font-size: 18px;
    color: #1e293b;
    margin-bottom: 8px;
}

.contact-card p {
    color: var(--text-gray);
    font-size: 14px;
}

/* FAQ
 */
.faq-section {
    padding: 100px 0;
    background: #f8fafc;
}

.faq-section .container {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 60px;
}

.faq-header .section-badge {
    margin-bottom: 20px;
}

.faq-header h2 {
    font-size: 36px;
    color: #1e293b;
    line-height: 1.3;
    margin-bottom: 15px;
}

.faq-header p {
    color: var(--text-gray);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.faq-question {
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
    color: #1e293b;
}

.faq-question i {
    color: var(--text-gray);
    transition: transform 0.3s;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item.active .faq-answer {
    padding: 0 25px 20px;
    max-height: 200px;
}

.faq-answer p {
    color: var(--text-gray);
    line-height: 1.7;
}

/* CTA区域 */
.cta-section {
    padding: 80px 0;
    background: var(--dark-bg);
}

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

.cta-logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

.cta-content h2 {
    font-size: 32px;
    color: var(--white);
    line-height: 1.4;
    margin-bottom: 50px;
}

.cta-stats {
    display: flex;
    justify-content: center;
    gap: 80px;
}

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

.cta-stat .number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

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

/* 订阅区域 */
.subscribe-section {
    padding: 60px 0;
    background: var(--white);
    border-top: 1px solid var(--border-color);
}

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

.subscribe-text h3 {
    font-size: 20px;
    color: #1e293b;
    margin-bottom: 5px;
}

.subscribe-text p {
    color: var(--text-gray);
    font-size: 14px;
}

.subscribe-form {
    display: flex;
    gap: 12px;
}

.subscribe-form input {
    padding: 14px 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 300px;
    font-size: 14px;
}

.subscribe-form input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 页脚 */
.footer {
    background: var(--dark-bg);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-gray);
    margin-top: 15px;
    font-size: 14px;
    line-height: 1.7;
}

.footer-links h4 {
    color: var(--white);
    font-size: 16px;
    margin-bottom: 20px;
}

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

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

.footer-links ul a {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
    color: var(--text-gray);
    font-size: 14px;
}

.footer-legal {
    display: flex;
    gap: 25px;
}

.footer-legal a {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 14px;
}

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

/*
 响应式设计 */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-cards {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
    
    .price-card.featured {
        transform: none;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark-bg);
        flex-direction: column;
        padding: 20px;
        gap: 0;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        padding: 15px 0;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .dropdown-content {
        position: static;
        display: none;
        margin-top: 10px;
    }
    
    .dropdown.active .dropdown-content {
        display: block;
    }
    
    .nav-buttons {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 30px;
    }
    
    .stat-item {
        width: 45%;
    }
    
    .get-started-content {
        grid-template-columns: 1fr;
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-cards {
        grid-template-columns: 1fr;
    }
    
    .faq-section .container {
        grid-template-columns: 1fr;
    }
    
    .cta-stats {
        flex-wrap: wrap;
        gap: 40px;
    }
    
    .cta-stat {
        width: 45%;
    }
    
    .subscribe-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .subscribe-form {
        flex-direction: column;
    }
    
    .subscribe-form input {
        width: 100%;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

/* 定价页面专用样式 */
.pricing-hero {
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1e3a5f 100%);
    padding: 150px 20px 80px;
    text-align: center;
}

.pricing-hero h1 {
    font-size: 42px;
    color: var(--white);
    margin-bottom: 20px;
}

.pricing-hero p {
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

.pricing-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
}

.pricing-tab {
    padding: 12px 30px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    color: #64748b;
    transition: all 0.3s;
}

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

.pricing-table {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    margin-bottom: 40px;
}

.pricing-table-header {
    display: grid;
    grid-template-columns: 1fr repeat(3, 1fr);
    background: #f8fafc;
    padding: 20px;
    font-weight: 600;
    color: #1e293b;
}

.pricing-table-row {
    display: grid;
    grid-template-columns: 1fr repeat(3, 1fr);
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
}

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

/* 关于页面专用样式 */
.about-hero {
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1e3a5f 100%);
    padding: 150px 20px 80px;
    text-align: center;
}

.about-hero h1 {
    font-size: 42px;
    color: var(--white);
    margin-bottom: 20px;
}

.about-content {
    padding: 80px 0;
}

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

.about-text h2 {
    font-size: 32px;
    color: #1e293b;
    margin-bottom: 20px;
}

.about-text p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 15px;
}

.about-image {
    background: #f1f5f9;
    border-radius: 20px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-image i {
    font-size: 100px;
    color: var(--primary-color);
    opacity: 0.3;
}


/* 页面通用样式 */
.page-hero {
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1e3a5f 100%);
    padding: 120px 0 60px;
    text-align: center;
}

.page-hero h1 {
    font-size: 36px;
    margin-bottom: 15px;
}

.page-hero h1 i {
    margin-right: 15px;
    color: var(--primary-color);
}

.page-hero p {
    color: var(--text-gray);
    font-size: 18px;
}

.product-detail {
    padding: 60px 0;
}

.product-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
}

.product-intro h2 {
    font-size: 28px;
    margin-bottom: 20px;
}

.product-intro p {
    color: var(--text-gray);
    line-height: 1.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-bottom: 50px;
}

.feature-card {
    background: var(--dark-card);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-gray);
    font-size: 14px;
}

.cta-section {
    text-align: center;
    padding: 40px;
    background: var(--dark-card);
    border-radius: 16px;
}

.cta-section h2 {
    font-size: 24px;
    margin-bottom: 10px;
}

.cta-section p {
    color: var(--text-gray);
    margin-bottom: 20px;
}

.footer {
    background: var(--dark-nav);
    padding: 30px 0;
    text-align: center;
    color: var(--text-gray);
}

@media (max-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .page-hero h1 {
        font-size: 28px;
    }
}