* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary: #6a5acd;
    --secondary: #9370db;
    --accent: #ff6b6b;
    --dark: #2d2b55;
    --light: #f8f9fa;
    --gray: #6c757d;
    --border: #e0e0e0;
}

body {
    background: linear-gradient(135deg, #1a1830, #2d2b55);
    color: white;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 头部样式 */
header {
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: bold;
}

.logo span {
    margin-right: 10px;
    font-size: 2rem;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 25px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 5px;
    transition: all 0.3s;
}

nav ul li a:hover,
nav ul li a.active {
    background: rgba(255, 255, 255, 0.2);
}

.search-bar {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    padding: 5px 15px;
    width: 300px;
}

.search-bar input {
    background: transparent;
    border: none;
    color: white;
    padding: 8px;
    width: 100%;
    outline: none;
}

.search-bar input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}


.breadcrumb {
    display: flex;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

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

.breadcrumb span {
    margin: 0 10px;
    color: var(--gray);
}

/* 主内容区样式 */
.main-content {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-grow: 1;
    padding: 30px 0;
}

.register-container {
    display: flex;
    width: 100%;
    max-width: 1000px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

.register-left {
    flex: 1;
    background: linear-gradient(135deg, var(--primary), var(--dark));
    padding: 60px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.register-right {
    flex: 1;
    padding: 60px 40px;
    background: white;
    color: #333;
}

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

.register-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
}

.register-header p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
}

.features-list {
    list-style: none;
    margin-top: 30px;
}

.features-list li {
    padding: 15px 0;
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.features-list li:last-child {
    border-bottom: none;
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.form-container {
    max-width: 400px;
    margin: 0 auto;
}

.form-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
    text-align: center;
    color: var(--dark);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.input-with-icon {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    color: var(--gray);
}

.form-control {
    width: 100%;
    padding: 15px 15px 15px 45px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-control:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(106, 90, 205, 0.2);
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--gray);
}

.terms {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 25px;
}

.terms input {
    margin-top: 5px;
}

.terms label {
    font-size: 0.9rem;
    color: var(--gray);
}

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

.terms a:hover {
    text-decoration: underline;
}

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    padding: 16px;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(106, 90, 205, 0.4);
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(106, 90, 205, 0.6);
}

.divider {
    display: flex;
    align-items: center;
    margin: 30px 0;
    color: var(--gray);
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

.divider span {
    padding: 0 15px;
}

.social-login {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 25px;
}

.social-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s;
}

.social-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.google-btn {
    background: #fff;
    color: #DB4437;
}

.facebook-btn {
    background: #fff;
    color: #4267B2;
}

.twitter-btn {
    background: #fff;
    color: #1DA1F2;
}

.login-link {
    text-align: center;
    color: var(--gray);
}

.login-link a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.login-link a:hover {
    text-decoration: underline;
}

/* 页脚样式 */
footer {
    background: rgba(0, 0, 0, 0.3);
    padding: 30px 0 20px;
    margin-top: auto;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 30px;
}

.footer-column {
    flex: 1;
    min-width: 200px;
}

.footer-column h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background: var(--accent);
}

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

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

.footer-links a {
    color: #ddd;
    text-decoration: none;
    transition: color 0.3s;
    font-size: 0.9rem;
}

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

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #aaa;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .register-container {
        flex-direction: column;
        max-width: 600px;
    }

    .register-left, .register-right {
        padding: 40px 30px;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }

    .logo {
        order: 1;
    }

    .mobile-menu-btn {
        display: block;
        order: 2;
    }

    nav {
        order: 4;
        width: 100%;
        margin-top: 20px;
        display: none;
    }

    nav.active {
        display: block;
    }

    nav ul {
        flex-direction: column;
    }

    nav ul li {
        margin: 10px 0;
    }

    .register-header h2 {
        font-size: 2rem;
    }

    .form-title {
        font-size: 1.6rem;
    }
}

@media (max-width: 480px) {
    .register-header h2 {
        font-size: 1.8rem;
    }

    .features-list li {
        font-size: 1rem;
    }

    .feature-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .form-control {
        padding: 12px 12px 12px 40px;
    }
}