/* 网盾安全中心官网样式 */

/* ========== 全局样式 ========== */
:root {
    --primary-color: #000000;
    --secondary-color: #333333;
    --success-color: #4a4a4a;
    --danger-color: #ef4444;
    --warning-color: #666666;
    --text-color: #1a1a1a;
    --text-light: #666666;
    --bg-color: #ffffff;
    --bg-light: #f5f5f5;
    --bg-dark: #1a1a1a;
    --border-color: #e0e0e0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

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

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

/* ========== Icon样式映射 ========== */
.icon {
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
}

.icon-shield::before { content: '\f3ed'; }
.icon-shield-check::before { content: '\f2f7'; }
.icon-monitor::before { content: '\f108'; }
.icon-lock::before { content: '\f023'; }
.icon-mobile::before { content: '\f3cd'; }
.icon-search::before { content: '\f002'; }
.icon-alert::before { content: '\f071'; }
.icon-user::before { content: '\f007'; }
.icon-briefcase::before { content: '\f0b1'; }
.icon-badge::before { content: '\f559'; }
.icon-android::before { content: '\f17b'; font-family: 'Font Awesome 6 Brands'; font-weight: 400; }
.icon-apple::before { content: '\f179'; font-family: 'Font Awesome 6 Brands'; font-weight: 400; }
.icon-qrcode::before { content: '\f029'; }
.icon-building::before { content: '\f1ad'; }
.icon-target::before { content: '\f140'; }
.icon-rocket::before { content: '\f135'; }
.icon-lightbulb::before { content: '\f0eb'; }
.icon-heart::before { content: '\f004'; }
.icon-handshake::before { content: '\f2b5'; }
.icon-mail::before { content: '\f0e0'; }
.icon-message::before { content: '\f27a'; }
.icon-share::before { content: '\f1e0'; }

/* ========== 导航栏 ========== */
.header {
    background: #bbb;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
    font-size: 20px;
    font-weight: 700;
}

.logo-image {
    height: 40px;
    width: auto;
    margin-right: 12px;
}

.logo-icon {
    font-size: 32px;
    margin-right: 10px;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
    padding: 5px 0;
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

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

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-color);
    transition: 0.3s;
}

.mobile-menu {
    display: none;
    background: #fff;
    padding: 20px;
    box-shadow: var(--shadow);
}

.mobile-menu-link {
    display: block;
    padding: 15px 0;
    text-decoration: none;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
}

/* ========== 按钮样式 ========== */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 16px;
}

.btn-primary {
    background: var(--primary-color);
    color: #fff;
}

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

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

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

.btn-light {
    background: #fff;
    color: var(--primary-color);
}

.btn-light:hover {
    background: var(--bg-light);
}

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

/* ========== 首页英雄区 ========== */
.hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
    color: #fff;
    padding: 100px 0;
    text-align: center;
}

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

.hero-subtitle {
    font-size: 24px;
    margin-bottom: 15px;
    opacity: 0.95;
}

.hero-desc {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* ========== 功能特性区 ========== */
.features {
    padding: 80px 0;
    background: var(--bg-light);
}

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

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

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

.feature-icon .icon {
    font-size: 48px;
    color: var(--primary-color);
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}

.feature-desc {
    color: var(--text-light);
    line-height: 1.7;
}

/* ========== 产品展示区 ========== */
.product-showcase {
    padding: 80px 0;
}

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

.showcase-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
}

.showcase-subtitle {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 30px;
}

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

.showcase-list li {
    font-size: 18px;
    padding: 10px 0;
    color: var(--text-color);
}

.phone-mockup {
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
    border-radius: 30px;
    padding: 20px;
    box-shadow: var(--shadow-lg);
}

.phone-screen {
    background: #fff;
    border-radius: 20px;
    padding: 40px 20px;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-preview {
    text-align: center;
}

.app-icon {
    font-size: 80px;
    margin-bottom: 20px;
}

.app-icon .icon {
    font-size: 80px;
    color: var(--primary-color);
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--success-color);
    margin: 20px auto 0;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ========== 统计数据区 ========== */
.stats {
    padding: 60px 0;
    background: #1a1a1a;
    color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 18px;
    opacity: 0.9;
}

/* ========== CTA区域 ========== */
.cta {
    padding: 80px 0;
    background: var(--bg-light);
    text-align: center;
}

.cta-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.cta-desc {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 30px;
}

/* ========== 产品页样式 ========== */
.product-hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.product-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 15px;
}

.product-slogan {
    font-size: 24px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.product-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.product-intro {
    padding: 80px 0;
}

.intro-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-text h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

.intro-text p {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 15px;
}

.security-badge {
    background: var(--bg-light);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow);
}

.badge-icon {
    font-size: 80px;
    margin-bottom: 20px;
}

.badge-icon .icon {
    font-size: 80px;
    color: var(--primary-color);
}

.product-features {
    padding: 80px 0;
    background: var(--bg-light);
}

.feature-box {
    background: #fff;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-box-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.feature-box-icon .icon {
    font-size: 60px;
    color: var(--primary-color);
}

.feature-box-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
}

.feature-box-desc {
    color: var(--text-light);
    line-height: 1.7;
    font-size: 16px;
}

/* ========== 使用场景 ========== */
.use-cases {
    padding: 80px 0;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.case-card {
    background: var(--bg-light);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
}

.case-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.case-icon .icon {
    font-size: 60px;
    color: var(--primary-color);
}

.case-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.case-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ========== 使用步骤 ========== */
.how-to-use {
    padding: 80px 0;
    background: var(--bg-light);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.step {
    display: flex;
    gap: 20px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.step-content p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ========== 下载页样式 ========== */
.download-hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
    color: #fff;
    padding: 60px 0;
    text-align: center;
}

.download-section {
    padding: 80px 0;
}

.download-box {
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    border-radius: 20px;
    padding: 60px 40px;
    box-shadow: var(--shadow-lg);
}

.download-info {
    text-align: center;
    margin-bottom: 50px;
}

.app-icon-large {
    font-size: 100px;
    margin-bottom: 20px;
}

.app-icon-large .icon {
    font-size: 100px;
    color: var(--primary-color);
}

.download-info h2 {
    font-size: 32px;
    margin-bottom: 15px;
}

.version, .size, .update-date {
    color: var(--text-light);
    margin: 5px 0;
}

.download-platforms h3 {
    text-align: center;
    font-size: 24px;
    margin-bottom: 30px;
}

.platform-buttons {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.platform-btn {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s;
}

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

.platform-icon {
    font-size: 48px;
}

.platform-icon .icon {
    font-size: 48px;
    color: var(--text-color);
}

.platform-info strong {
    display: block;
    font-size: 20px;
    margin-bottom: 5px;
}

.platform-info span {
    color: var(--text-light);
}

.qr-code-section {
    text-align: center;
    padding: 30px 0;
}

.qr-code {
    width: 200px;
    height: 200px;
    margin: 0 auto 15px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-placeholder {
    text-align: center;
    color: var(--text-light);
}

.qr-placeholder p:first-child {
    font-size: 48px;
}

.qr-placeholder .icon {
    font-size: 80px;
    color: var(--text-light);
}

.qr-tip {
    color: var(--text-light);
}

/* ========== 系统要求 ========== */
.system-requirements {
    padding: 80px 0;
    background: var(--bg-light);
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.requirement-card {
    background: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.requirement-card h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

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

.requirement-card li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-light);
}

.requirement-card li:last-child {
    border-bottom: none;
}

/* ========== 更新日志 ========== */
.changelog {
    padding: 80px 0;
}

.changelog-list {
    max-width: 800px;
    margin: 0 auto;
}

.changelog-item {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.changelog-version {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.changelog-date {
    color: var(--text-light);
    margin-bottom: 15px;
}

.changelog-content ul {
    list-style: none;
    padding-left: 0;
}

.changelog-content li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
}

.changelog-content li::before {
    content: '•';
    position: absolute;
    left: 10px;
    color: var(--primary-color);
}

.download-help {
    padding: 60px 0;
    background: var(--bg-light);
}

.help-box {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 40px;
    background: #fff;
    border-radius: 12px;
}

.help-box h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.help-box a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

/* ========== 关于页面样式 ========== */
.about-hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.company-intro {
    padding: 80px 0;
}

.intro-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-text h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.intro-main {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-color);
}

.intro-text p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 15px;
}

.company-badge {
    background: var(--bg-light);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow);
}

.mission-vision {
    padding: 80px 0;
    background: var(--bg-light);
}

.mv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.mv-card {
    background: #fff;
    padding: 50px 40px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
}

.mv-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.mv-icon .icon {
    font-size: 60px;
    color: var(--primary-color);
}

.mv-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.mv-card p {
    font-size: 18px;
    color: var(--text-light);
    line-height: 1.7;
}

.values {
    padding: 80px 0;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.value-item {
    background: var(--bg-light);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
}

.value-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.value-icon .icon {
    font-size: 48px;
    color: var(--primary-color);
}

.value-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.value-item p {
    color: var(--text-light);
    line-height: 1.7;
}

.timeline {
    padding: 80px 0;
    background: var(--bg-light);
}

.timeline-list {
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 2px solid var(--border-color);
}

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

.timeline-year {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary-color);
    min-width: 100px;
}

.timeline-content h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.timeline-content p {
    color: var(--text-light);
    line-height: 1.7;
}

.contact-cta {
    padding: 80px 0;
    text-align: center;
}

/* ========== 联系页面样式 ========== */
.contact-hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.contact-info {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.contact-card {
    background: var(--bg-light);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
}

.contact-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.contact-icon .icon {
    font-size: 60px;
    color: var(--primary-color);
}

.contact-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.contact-card p {
    color: var(--text-light);
    margin: 10px 0;
}

.contact-note {
    font-size: 14px;
}

.social-links {
    margin-top: 15px;
}

.social-links a {
    display: inline-block;
    margin: 0 10px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.feedback-form {
    padding: 80px 0;
    background: var(--bg-light);
}

.form-wrapper {
    max-width: 600px;
    margin: 0 auto;
    background: #fff;
    padding: 50px 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.form-header {
    text-align: center;
    margin-bottom: 40px;
}

.form-header h2 {
    font-size: 28px;
    margin-bottom: 10px;
}

.form-header p {
    color: var(--text-light);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
}

.form-submit {
    text-align: center;
    margin-top: 30px;
}

.faq {
    padding: 80px 0;
}

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

.faq-item {
    background: var(--bg-light);
    padding: 25px 30px;
    border-radius: 12px;
    margin-bottom: 15px;
    cursor: pointer;
}

.faq-question {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 24px;
    color: var(--primary-color);
}

.faq-item.active .faq-question::after {
    content: '−';
}

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

.faq-item.active .faq-answer {
    max-height: 500px;
    padding-top: 15px;
}

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

.faq-answer a {
    color: var(--primary-color);
    text-decoration: none;
}

/* ========== 页脚样式 ========== */
.footer {
    background: #1f2937;
    color: #fff;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    font-size: 20px;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    font-size: 14px;
}

.footer-section a {
    display: block;
    text-decoration: none;
    margin-bottom: 10px;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu.active {
        display: block;
    }

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

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

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

    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }

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

    .showcase-content,
    .intro-content,
    .intro-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .features-grid,
    .cases-grid,
    .steps,
    .requirements-grid,
    .mv-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }

    .timeline-item {
        flex-direction: column;
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 60px 0;
    }

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

    .section-title {
        font-size: 24px;
    }

    .download-box,
    .form-wrapper {
        padding: 30px 20px;
    }

    .platform-btn {
        padding: 20px;
    }

    .platform-icon {
        font-size: 36px;
    }
}