* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: #f5f8fc;
    color: #1e2b45;
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: #ffffff;
    border-bottom: 1px solid #e9edf2;
    display: flex;
    align-items: center;
    padding: 0 32px;
    z-index: 200;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}
.logo-area {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 280px;
}
.logo-area img {
    height: 40px;
    width: auto;
    display: block;
}
.nav-menu {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    list-style: none;
    margin-right: 20px;
}
.nav-menu a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: 40px;
    color: #4a5a72;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: 0.2s;
}
.nav-menu a:hover {
    background: #f0f4fa;
    color: #2266cc;
}
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: 1px solid #d0d8e5;
    border-radius: 8px;
    padding: 6px 16px;
    font-size: 1.3rem;
    cursor: pointer;
    color: #3e5570;
}
.main-content {
    margin-top: 64px;
    padding: 40px 32px;
    min-height: calc(100vh - 64px - 70px);
    background: #f5f8fc;
    display: flex;
    align-items: center;
    justify-content: center;
}
.register-card {
    background: #ffffff;
    border-radius: 40px;
    padding: 40px;
    width: 100%;
    max-width: 1200px;
    box-shadow: 0 20px 40px -15px rgba(0,30,60,0.1);
    border: 1px solid #f0f4fe;
}
.register-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}
.brand-section {
    background: linear-gradient(145deg, #f9fcff, #f0f7ff);
    border-radius: 32px;
    padding: 32px;
    border: 1px solid #e4ecf5;
}
.brand-logo {
    margin-bottom: 24px;
}
.brand-logo h1 {
    font-size: 2rem;
    font-weight: 700;
    color: #1f2c45;
}
.brand-logo p {
    color: #2266cc;
    margin-top: 8px;
}
.feature-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 32px;
}
.feature-item {
    display: flex;
    align-items: center;
    gap: 16px;
}
.feature-icon {
    width: 48px;
    height: 48px;
    background: #ffffff;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #2266cc;
    border: 1px solid #d3e0f0;
}
.feature-text h3 {
    font-size: 1rem;
    font-weight: 600;
    color: #1f2c45;
}
.feature-text p {
    font-size: 0.85rem;
    color: #5f6e8c;
}
.stats-row {
    display: flex;
    justify-content: space-around;
    background: #ffffff;
    border-radius: 30px;
    padding: 20px;
    border: 1px solid #d3e0f0;
}
.stat-item {
    text-align: center;
}
.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2266cc;
}
.stat-label {
    font-size: 0.8rem;
    color: #5f6e8c;
}
.ad-banner {
    background: linear-gradient(135deg, #2266cc, #1a52a8);
    color: white;
    border-radius: 30px;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
    border: 2px solid #ffcc00;
    margin-bottom: 20px;
    animation: pulse 3s infinite;
}
@keyframes pulse {
    0% { box-shadow: 0 4px 12px rgba(34,102,204,0.3); }
    50% { box-shadow: 0 4px 18px rgba(34,102,204,0.6); }
    100% { box-shadow: 0 4px 12px rgba(34,102,204,0.3); }
}
.ad-left {
    display: flex;
    align-items: center;
    gap: 15px;
}
.ad-icon {
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}
.ad-text {
    line-height: 1.4;
}
.ad-title {
    font-weight: 700;
    font-size: 1.1rem;
}
.ad-title span {
    color: #ffcc00;
    font-weight: 800;
}
.ad-desc {
    font-size: 0.85rem;
    opacity: 0.9;
}
.ad-button {
    background: linear-gradient(135deg, #ffcc00, #ff9900);
    color: #1a52a8;
    padding: 12px 28px;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 2px solid white;
    transition: 0.2s;
}
.ad-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(255,204,0,0.4);
}
.register-header {
    text-align: center;
    margin-bottom: 20px;
}
.register-header h2 {
    font-size: 1.5rem;
    color: #1f2c45;
    margin-bottom: 8px;
}
.register-header p {
    color: #5f6e8c;
}
.alert {
    border-radius: 60px;
    padding: 12px 24px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.alert-danger {
    background: #fee9e9;
    color: #b12e2e;
    border: 1px solid #fbc1c1;
}
.alert-success {
    background: #e0f2e9;
    color: #1c7e4c;
    border: 1px solid #b3e0c0;
}
.form-group {
    margin-bottom: 20px;
}
.form-label {
    display: block;
    margin-bottom: 8px;
    color: #5f6e8c;
    font-weight: 500;
}
.input-container {
    position: relative;
}
.input-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: #9aafcf;
    font-size: 1.2rem;
}
.form-input {
    width: 100%;
    padding: 14px 24px 14px 54px;
    border: 1.5px solid #e4ecf5;
    border-radius: 60px;
    font-size: 0.95rem;
    background: #ffffff;
    transition: 0.2s;
}
.form-input:focus {
    outline: none;
    border-color: #2266cc;
    box-shadow: 0 0 0 3px rgba(34,102,204,0.1);
}
.verification-row {
    display: flex;
    gap: 10px;
}
.verification-input {
    flex: 2;
}
.send-code-btn {
    flex: 1;
    background: #f3f8ff;
    border: 1.5px solid #d3e0f0;
    color: #2a4570;
    border-radius: 60px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 10px;
    white-space: nowrap;
}
.send-code-btn:hover {
    background: #e5edff;
}
.send-code-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.countdown {
    margin-top: 8px;
    font-size: 0.85rem;
    color: #5f6e8c;
    display: none;
}
.password-requirements {
    margin-top: 8px;
    font-size: 0.85rem;
    color: #5f6e8c;
    display: flex;
    align-items: center;
    gap: 6px;
}
.register-submit-btn {
    width: 100%;
    background: #2266cc;
    border: none;
    color: white;
    padding: 14px;
    border-radius: 60px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: 0 8px 18px -6px #2266cc80;
    transition: 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}
.register-submit-btn:hover {
    background: #1a52a8;
}
.login-link {
    text-align: center;
    margin-top: 20px;
    color: #5f6e8c;
}
.login-link a {
    color: #2266cc;
    text-decoration: none;
}
.login-link a:hover {
    text-decoration: underline;
}
footer {
    margin-left: 0;
    padding: 24px 32px;
    text-align: center;
    color: #7a90b5;
    border-top: 1px solid #e9eef7;
    background: #f5f8fc;
}
.seo-info {
    margin-top: 8px;
    font-size: 0.8rem;
    opacity: 0.7;
}
@media (max-width: 900px) {
    .register-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .main-content {
        padding: 20px;
    }
}
@media (max-width: 600px) {
    .ad-banner {
        flex-direction: column;
        text-align: center;
    }
    .ad-left {
        flex-direction: column;
    }
    .ad-button {
        width: 100%;
        justify-content: center;
    }
    .verification-row {
        flex-direction: column;
    }
    .send-code-btn {
        padding: 12px;
    }
}