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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
}

.nav-logo i {
    margin-right: 0.5rem;
    font-size: 1.8rem;
}

/* 用户区域样式 */
.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid #2563eb;
    cursor: pointer;
    transition: all 0.3s ease;
}

.user-avatar:hover {
    transform: scale(1.1);
    border-color: #1d4ed8;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.login-btn, .logout-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 50px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.login-btn {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
}

.logout-btn {
    background: #f3f4f6;
    color: #6b7280;
    border: 1px solid #d1d5db;
}

.logout-btn:hover {
    background: #ef4444;
    color: white;
    border-color: #ef4444;
    transform: translateY(-2px);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #2563eb;
}

.nav-menu .download-btn {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    transition: transform 0.3s ease;
}

.nav-menu .download-btn:hover {
    transform: translateY(-2px);
    color: white;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 移动端菜单样式 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu a {
        font-size: 1.2rem;
        padding: 1rem 0;
        border-bottom: 1px solid #e5e7eb;
        width: 100%;
        text-align: center;
    }
    
    .nav-menu a:last-child {
        border-bottom: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

/* 英雄区域 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    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"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-features {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.feature-item i {
    font-size: 1.2rem;
    color: #fbbf24;
}

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

.download-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.download-btn.primary {
    background: white;
    color: #2563eb;
}

.download-btn.secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

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

.phone-mockup {
    width: 300px;
    height: 600px;
    background: #1f2937;
    border-radius: 30px;
    padding: 20px;
    position: relative;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.screen {
    width: 100%;
    height: 100%;
    background: #f8fafc;
    border-radius: 20px;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-placeholder {
    width: 100%;
    height: 200px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.chart-line {
    height: 2px;
    background: linear-gradient(90deg, #2563eb, #7c3aed);
    border-radius: 1px;
    animation: pulse 2s infinite;
}

.chart-line:nth-child(2) {
    width: 80%;
    margin-left: 10%;
}

.chart-line:nth-child(3) {
    width: 60%;
    margin-left: 20%;
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* 特点区域 */
.features {
    padding: 80px 0;
    background: #f8fafc;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #1f2937;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.feature-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* 锦标赛区域 */
.tournaments {
    padding: 80px 0;
    background: linear-gradient(135deg, #1f2937, #374151);
    color: white;
}

.tournaments h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.8;
}

.tournament-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #fbbf24;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.8;
}

.leaderboard {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(10px);
}

.leaderboard h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: #fbbf24;
}

.leaderboard-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.leaderboard-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.leaderboard-item:hover {
    transform: translateX(10px);
}

.rank {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-right: 1rem;
}

.player-info {
    flex: 1;
}

.player-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.player-profit {
    color: #10b981;
    font-weight: 500;
}

/* 客户评价 */
.testimonials {
    padding: 80px 0;
    background: #f8fafc;
}

.testimonials h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #1f2937;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.stars {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.stars i {
    color: #fbbf24;
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: #4b5563;
    line-height: 1.6;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

.author-name {
    font-weight: 600;
    color: #1f2937;
}

.author-type {
    color: #6b7280;
    font-size: 0.9rem;
}

/* 常见问题 */
.faq {
    padding: 80px 0;
    background: white;
}

.faq h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1f2937;
}

.faq-link {
    text-align: center;
    margin-bottom: 3rem;
}

.faq-pdf-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.2);
}

.faq-pdf-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
    color: white;
}

.faq-pdf-link i {
    font-size: 1.2rem;
}

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

.faq-item {
    border-bottom: 1px solid #e5e7eb;
    margin-bottom: 1rem;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    cursor: pointer;
    transition: color 0.3s ease;
}

.faq-question:hover h3 {
    color: #2563eb;
}

.faq-question h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1f2937;
    transition: color 0.3s ease;
}

.faq-question i {
    color: #6b7280;
    transition: transform 0.3s ease;
}

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

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

.faq-item.active .faq-answer {
    max-height: 200px;
    padding-bottom: 1.5rem;
}

.faq-answer p {
    color: #6b7280;
    line-height: 1.6;
}

/* 下载区域 */
.download {
    padding: 80px 0;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    text-align: center;
}

.download h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.download p {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.download .download-buttons {
    justify-content: center;
}

.download .download-btn {
    background: white;
    color: #2563eb;
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

.download .download-btn.secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.btn-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.btn-label {
    font-size: 0.8rem;
    opacity: 0.7;
}

.btn-store {
    font-size: 1.2rem;
    font-weight: 700;
}

/* 页脚 */
.footer {
    background: #1f2937;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 1rem;
}

.footer-logo i {
    margin-right: 0.5rem;
    font-size: 1.8rem;
}

.footer-section p {
    color: #9ca3af;
    line-height: 1.6;
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.footer-section a {
    display: block;
    color: #9ca3af;
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #2563eb;
}

.contact-links {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.contact-links a {
    width: 45px;
    height: 45px;
    background: #374151;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    margin-bottom: 0;
    font-size: 1.2rem;
}

.contact-links a:hover {
    background: #2563eb;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
}

.contact-links a[title*="WhatsApp"]:hover {
    background: #25d366;
    box-shadow: 0 5px 15px rgba(37, 211, 102, 0.3);
}

.contact-links a[title*="Telegram"]:hover {
    background: #0088cc;
    box-shadow: 0 5px 15px rgba(0, 136, 204, 0.3);
}

.contact-links a[title*="X"]:hover {
    background: #000000;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.contact-links a[title*="Gmail"]:hover {
    background: #ea4335;
    box-shadow: 0 5px 15px rgba(234, 67, 53, 0.3);
}

.contact-links a[title*="TikTok"]:hover {
    background: #000000;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.contact-links a[title*="Instagram"]:hover {
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
    box-shadow: 0 5px 15px rgba(220, 39, 67, 0.3);
}

.contact-links a[title*="YouTube"]:hover {
    background: #ff0000;
    box-shadow: 0 5px 15px rgba(255, 0, 0, 0.3);
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
}

.footer-legal a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-legal a:hover {
    color: #2563eb;
}

.footer-legal .separator {
    color: #6b7280;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-user {
        gap: 0.5rem;
    }
    
    .login-btn, .logout-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .user-avatar {
        width: 35px;
        height: 35px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .tournament-stats {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-links {
        justify-content: center;
    }
    
    .footer-legal {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .footer-legal .separator {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .features h2,
    .tournaments h2,
    .testimonials h2,
    .faq h2,
    .download h2 {
        font-size: 2rem;
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 20px;
    padding: 0;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
    overflow: hidden;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.close-btn {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.close-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.modal-form {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
    font-size: 0.9rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.validate-code-group {
    display: flex;
    gap: 0.5rem;
}

.validate-code-group input {
    flex: 1;
}

.send-code-btn {
    padding: 0.75rem 1rem;
    background: #f3f4f6;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    color: #6b7280;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.send-code-btn:hover:not(:disabled) {
    background: #2563eb;
    color: white;
    border-color: #2563eb;
}

.send-code-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.submit-btn {
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.form-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e5e7eb;
    color: #6b7280;
    font-size: 0.9rem;
}

.link-btn {
    background: none;
    border: none;
    color: #2563eb;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    margin-left: 0.5rem;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.link-btn:hover {
    color: #1d4ed8;
}

/* 错误消息样式 */
.error-message {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.error-message.show {
    display: block;
}

/* 成功消息样式 */
.success-message {
    color: #10b981;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.success-message.show {
    display: block;
}

/* 响应式设计 */
@media (max-width: 480px) {
    .modal-content {
        width: 95%;
        margin: 1rem;
    }
    
    .modal-header {
        padding: 1rem 1.5rem;
    }
    
    .modal-form {
        padding: 1.5rem;
    }
    
    .validate-code-group {
        flex-direction: column;
    }
    
    .send-code-btn {
        width: 100%;
    }
}