/* ==========================================
   微存宝 - 品牌样式表
   主色：#07C160 (微信绿)
   辅色：#1AAD19, #F0FFF0
   中性色：#333, #666, #e5e5e5
   ========================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
    color: #333;
    line-height: 1.6;
    background: #fff;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: #07C160;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #1AAD19;
}

ul {
    list-style: none;
}

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

.section {
    padding: 80px 0;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    color: #333;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 8px;
}

.section-header p {
    font-size: 16px;
    color: #666;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #07C160, #1AAD19);
    color: white;
    border-color: #07C160;
    box-shadow: 0 4px 15px rgba(7, 193, 96, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(7, 193, 96, 0.4);
    color: white;
}

.btn-outline {
    background: transparent;
    color: #07C160;
    border-color: #07C160;
}

.btn-outline:hover {
    background: rgba(7, 193, 96, 0.1);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 36px;
    font-size: 18px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-submit {
    width: 100%;
    justify-content: center;
}

/* 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(10px);
    border-bottom: 1px solid rgba(229, 229, 229, 0.5);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-icon {
    width: 36px;
    height: 36px;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    color: #07C160;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: #333;
    position: relative;
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #07C160;
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a.active {
    color: #07C160;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: #333;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Hero区 */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #F0FFF0 0%, #E8F5E9 50%, #C8E6C9 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(7, 193, 96, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

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

.hero-left {
    position: relative;
    z-index: 1;
}

.hero-logo {
    height: 60px;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    color: #333;
    margin-bottom: 8px;
    line-height: 1.2;
}

.hero-slogan {
    font-size: 28px;
    font-weight: 600;
    color: #07C160;
    margin-bottom: 16px;
}

.hero-desc {
    font-size: 16px;
    color: #666;
    margin-bottom: 32px;
    max-width: 480px;
    line-height: 1.8;
}

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

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

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

.stat-number {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: #07C160;
}

.stat-label {
    font-size: 13px;
    color: #666;
    margin-top: 4px;
}

.hero-right {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
}

.hero-phone {
    width: 280px;
}

.phone-screen {
    background: white;
    border-radius: 32px;
    padding: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    position: relative;
}

.phone-status-bar {
    display: flex;
    justify-content: space-between;
    padding: 4px 8px;
    font-size: 12px;
    color: #333;
    margin-bottom: 8px;
}

.phone-content {
    background: #f5f5f5;
    border-radius: 16px;
    padding: 16px;
}

.wechat-mock {
    background: white;
    border-radius: 12px;
    overflow: hidden;
}

.mock-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: #fff;
    border-bottom: 1px solid #e5e5e5;
    font-size: 14px;
    font-weight: 600;
}

.mock-video {
    padding: 12px;
}

.video-placeholder {
    background: linear-gradient(135deg, #e5e5e5, #ccc);
    height: 160px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 14px;
    gap: 8px;
}

.video-placeholder i {
    font-size: 48px;
    color: rgba(7, 193, 96, 0.6);
}

.video-info {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 12px;
    color: #666;
}

.mock-download {
    padding: 12px;
}

.download-btn-mock {
    width: 100%;
    padding: 10px;
    background: #07C160;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

.phone-home-bar {
    width: 120px;
    height: 4px;
    background: #333;
    border-radius: 2px;
    margin: 12px auto 4px;
}

/* 特色区域 */
.features {
    padding: 80px 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 32px 24px;
    background: white;
    border-radius: 16px;
    border: 1px solid #e5e5e5;
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    border-color: rgba(7, 193, 96, 0.3);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #F0FFF0, #C8E6C9);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 24px;
    color: #07C160;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.feature-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 步骤区域 */
.steps {
    padding: 80px 0;
    background: linear-gradient(135deg, #F0FFF0, #E8F5E9);
}

.steps-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
}

.step-card {
    background: white;
    padding: 36px 28px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    flex: 1;
    max-width: 280px;
    position: relative;
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.step-number {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 32px;
    background: #07C160;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}

.step-icon {
    font-size: 36px;
    color: #07C160;
    margin-bottom: 12px;
}

.step-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.step-card p {
    font-size: 14px;
    color: #666;
}

.step-arrow {
    font-size: 24px;
    color: #07C160;
    flex-shrink: 0;
}

/* 分类导航 */
.categories {
    padding: 80px 0;
    background: white;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.category-card {
    padding: 28px 24px;
    background: white;
    border-radius: 16px;
    border: 1px solid #e5e5e5;
    text-align: center;
    transition: all 0.3s ease;
    text-decoration: none;
    color: #333;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    border-color: #07C160;
}

.category-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #F0FFF0, #C8E6C9);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 22px;
    color: #07C160;
}

.category-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 6px;
}

.category-card p {
    font-size: 13px;
    color: #666;
}

/* 用户评价 */
.testimonials {
    padding: 80px 0;
    background: linear-gradient(135deg, #F0FFF0, #E8F5E9);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: white;
    padding: 28px 24px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.testimonial-stars {
    color: #f59e0b;
    margin-bottom: 12px;
    font-size: 14px;
}

.testimonial-card p {
    font-size: 14px;
    color: #555;
    line-height: 1.7;
    margin-bottom: 16px;
}

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

.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 16px;
}

.testimonial-author strong {
    display: block;
    font-size: 14px;
    color: #333;
}

.testimonial-author span {
    font-size: 12px;
    color: #999;
}

/* CTA区域 */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #07C160, #1AAD19);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
}

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

.cta-content .btn {
    background: white;
    color: #07C160;
    border-color: white;
}

.cta-content .btn:hover {
    background: rgba(255, 255, 255, 0.9);
    color: #1AAD19;
}

/* 页脚 */
.footer {
    background: #1a1a2e;
    color: #ccc;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    height: 40px;
    margin-bottom: 16px;
    filter: brightness(0) invert(1);
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: #999;
    margin-bottom: 20px;
}

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

.footer-social a {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ccc;
    font-size: 16px;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: #07C160;
    color: white;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 16px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

.footer-links ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 14px;
    color: #999;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #07C160;
}

.footer-contact li {
    font-size: 14px;
    color: #999;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact i {
    width: 16px;
    color: #07C160;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    text-align: center;
    font-size: 14px;
    color: #666;
}

.footer-bottom a {
    color: #999;
}

.footer-bottom a:hover {
    color: #07C160;
}

/* 页面标题 (内页) */
.page-hero {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #F0FFF0, #E8F5E9);
    text-align: center;
}

.page-hero h1 {
    font-size: 40px;
    font-weight: 700;
    color: #333;
    margin-bottom: 8px;
}

.page-hero p {
    font-size: 18px;
    color: #666;
}

/* 关于页 - 品牌故事 */
.brand-story {
    padding: 80px 0;
}

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

.story-text h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #333;
}

.story-text p {
    font-size: 15px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 16px;
}

.story-image {
    display: flex;
    justify-content: center;
}

.story-logo {
    max-width: 300px;
}

/* 使命 */
.mission {
    padding: 80px 0;
    background: #f8f9fa;
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.mission-card {
    padding: 32px 24px;
    background: white;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.mission-icon {
    font-size: 36px;
    color: #07C160;
    margin-bottom: 16px;
}

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

.mission-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 时间轴 */
.timeline {
    padding: 80px 0;
}

.timeline-list {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

.timeline-list::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e5e5e5;
}

.timeline-item {
    display: flex;
    gap: 32px;
    margin-bottom: 40px;
    position: relative;
}

.timeline-year {
    width: 60px;
    height: 32px;
    background: #07C160;
    color: white;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 13px;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.timeline-content {
    padding: 20px;
    background: white;
    border-radius: 12px;
    border: 1px solid #e5e5e5;
    flex: 1;
}

.timeline-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 团队 */
.team {
    padding: 80px 0;
    background: #f8f9fa;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.team-card {
    background: white;
    padding: 32px 20px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

.team-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.team-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
    font-weight: 700;
    margin: 0 auto 16px;
}

.team-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.team-role {
    display: block;
    font-size: 13px;
    color: #07C160;
    margin-bottom: 12px;
}

.team-card p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

/* 联系页 - 联系信息 */
.contact-info {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.contact-card {
    padding: 28px 20px;
    background: white;
    border-radius: 16px;
    text-align: center;
    border: 1px solid #e5e5e5;
    transition: all 0.3s ease;
}

.contact-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    border-color: #07C160;
}

.contact-icon {
    font-size: 36px;
    color: #07C160;
    margin-bottom: 12px;
}

.contact-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 14px;
    color: #333;
}

.contact-desc {
    font-size: 12px !important;
    color: #999 !important;
    margin-top: 4px;
}

/* 留言表单 */
.contact-form {
    padding: 80px 0;
    background: #f8f9fa;
}

.form-wrapper {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.form-wrapper h2 {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
}

.form-wrapper > p {
    text-align: center;
    color: #666;
    margin-bottom: 32px;
    font-size: 15px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    color: #333;
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #e5e5e5;
    border-radius: 10px;
    font-size: 15px;
    font-family: inherit;
    transition: border-color 0.3s ease;
    background: #fafafa;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #07C160;
    background: white;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-success {
    text-align: center;
    padding: 40px 20px;
}

.form-success i {
    font-size: 48px;
    color: #07C160;
    margin-bottom: 16px;
}

.form-success h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.form-success p {
    color: #666;
}

/* 地图 */
.map-section {
    padding: 80px 0;
}

.map-container {
    max-width: 800px;
    margin: 0 auto;
}

.map-placeholder {
    background: linear-gradient(135deg, #e5e5e5, #ccc);
    border-radius: 16px;
    padding: 60px 20px;
    text-align: center;
    position: relative;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.map-placeholder i {
    font-size: 48px;
    color: #07C160;
    margin-bottom: 12px;
}

.map-placeholder p {
    font-size: 18px;
    color: #333;
    font-weight: 500;
}

.map-mock {
    margin-top: 20px;
    position: relative;
    width: 200px;
    height: 120px;
}

.mock-road {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: #999;
}

.mock-building {
    position: absolute;
    bottom: 20px;
    left: 30px;
    font-size: 32px;
}

.mock-marker {
    position: absolute;
    top: 20px;
    right: 40px;
    font-size: 32px;
    color: #07C160;
}

/* 社交媒体 */
.social-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 28px;
    background: white;
    border-radius: 16px;
    text-decoration: none;
    color: #333;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    min-width: 100px;
}

.social-link i {
    font-size: 28px;
}

.social-link:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.social-link.wechat:hover i { color: #07C160; }
.social-link.weibo:hover i { color: #e6162d; }
.social-link.qq:hover i { color: #12b7f5; }
.social-link.github:hover i { color: #333; }
.social-link.bilibili:hover i { color: #fb7299; }

/* 工具页 - 筛选 */
.tools-filter {
    padding: 40px 0 0;
}

.filter-bar {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
}

.search-box {
    flex: 1;
    min-width: 200px;
    position: relative;
}

.search-box i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
}

.search-box input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    border: 1px solid #e5e5e5;
    border-radius: 10px;
    font-size: 15px;
    background: #fafafa;
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: #07C160;
    background: white;
}

.filter-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    border: 1px solid #e5e5e5;
    border-radius: 20px;
    background: white;
    color: #666;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    border-color: #07C160;
    color: #07C160;
}

.filter-btn.active {
    background: #07C160;
    color: white;
    border-color: #07C160;
}

/* 工具卡片 */
.tools-list {
    padding: 40px 0;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.tool-card {
    background: white;
    border-radius: 16px;
    padding: 24px;
    border: 1px solid #e5e5e5;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    border-color: rgba(7, 193, 96, 0.3);
}

.tool-card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #F0FFF0, #C8E6C9);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #07C160;
    margin-bottom: 16px;
}

.tool-card-body {
    flex: 1;
    margin-bottom: 16px;
}

.tool-card-body h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.tool-card-body p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

.tool-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
}

.tool-downloads {
    font-size: 13px;
    color: #999;
}

.tool-downloads i {
    margin-right: 4px;
}

.tool-status {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 4px;
}

.status-active {
    background: #d4edda;
    color: #155724;
}

.status-inactive {
    background: #f8d7da;
    color: #721c24;
}

.tool-card .btn {
    align-self: flex-start;
}

/* 下载输入区 */
.download-input {
    padding: 40px 0 80px;
}

.download-card {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 40px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid #e5e5e5;
}

.download-card h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.download-card > p {
    color: #666;
    margin-bottom: 24px;
}

.input-group {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.download-input-field {
    flex: 1;
    padding: 14px 20px;
    border: 1px solid #e5e5e5;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s ease;
}

.download-input-field:focus {
    outline: none;
    border-color: #07C160;
    box-shadow: 0 0 0 3px rgba(7, 193, 96, 0.1);
}

.download-tips {
    text-align: left;
}

.download-tips p {
    font-size: 13px;
    color: #999;
    margin-bottom: 4px;
}

.download-tips i {
    margin-right: 6px;
    color: #07C160;
}

/* FAQ页 */
.faq {
    padding: 80px 0;
}

.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid #e5e5e5;
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: #07C160;
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    background: white;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
    font-weight: 500;
    color: #333;
    cursor: pointer;
    transition: all 0.3s ease;
}

.faq-question i {
    transition: transform 0.3s ease;
    color: #999;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
    color: #07C160;
}

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

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

.faq-answer p {
    padding: 0 24px 20px;
    font-size: 15px;
    color: #666;
    line-height: 1.7;
}

/* 响应式 */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-desc {
        margin: 0 auto 32px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .features-grid,
    .categories-grid,
    .testimonials-grid,
    .mission-grid,
    .team-grid,
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .story-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links a {
        font-size: 16px;
        padding: 8px 0;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-slogan {
        font-size: 22px;
    }

    .hero-stats {
        gap: 20px;
    }

    .features-grid,
    .categories-grid,
    .testimonials-grid,
    .mission-grid,
    .team-grid,
    .tools-grid {
        grid-template-columns: 1fr;
    }

    .steps-grid {
        flex-direction: column;
    }

    .step-arrow {
        transform: rotate(90deg);
    }

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

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

    .input-group {
        flex-direction: column;
    }

    .section-header h2 {
        font-size: 28px;
    }

    .page-hero h1 {
        font-size: 30px;
    }

    .cta-content h2 {
        font-size: 28px;
    }

    .filter-bar {
        flex-direction: column;
    }

    .filter-tabs {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-slogan {
        font-size: 18px;
    }

    .hero-desc {
        font-size: 14px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }

    .btn-large {
        padding: 14px 28px;
        font-size: 16px;
    }

    .section {
        padding: 60px 0;
    }

    .form-wrapper {
        padding: 24px 16px;
    }

    .download-card {
        padding: 24px 16px;
    }

    .tool-card {
        padding: 20px;
    }
}