/* 全局样式重置和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 黑金配色方案 */
    --primary-black: #1a1a1a;
    --secondary-black: #2d2d2d;
    --accent-gold: #d4af37;
    --light-gold: #f4e4a6;
    --dark-gold: #b8941f;
    --text-light: #ffffff;
    --text-dark: #1a1a1a;
    --text-gray: #888888;
    --background-dark: #0f0f0f;
    --background-light: #f8f8f8;
    --gradient-gold: linear-gradient(135deg, #d4af37, #f4e4a6);
    --gradient-dark: linear-gradient(135deg, #1a1a1a, #2d2d2d);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-light);
    background-color: var(--background-dark);
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(26, 26, 26, 0.95) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--accent-gold);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo h1 {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.8rem;
    font-weight: bold;
    margin: 0;
}

.logo-subtitle {
    font-size: 0.8rem;
    color: var(--text-gray);
    display: block;
    margin-top: -5px;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--accent-gold);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-gold);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-buttons {
    display: flex;
    gap: 15px;
}

.btn-login, .btn-register {
    padding: 10px 20px;
    border: none;
    border-radius: 25px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-login {
    background: transparent;
    color: var(--text-light);
    border: 2px solid var(--accent-gold);
}

.btn-login:hover {
    background: var(--accent-gold);
    color: var(--text-dark);
}

.btn-register {
    background: var(--gradient-gold);
    color: var(--text-dark);
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.3);
}

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    z-index: 1001;
}

/* 移动端菜单激活状态 */
.nav-menu.active {
    display: flex !important;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(26, 26, 26, 0.98);
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
}

.nav-menu.active .nav-link {
    padding: 15px 0;
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
    text-align: center;
    font-size: 1.1rem;
}

.nav-menu.active .nav-link:last-child {
    border-bottom: none;
}

/* 英雄区域样式 */
.hero {
    padding: 80px 0 30px;
    background: var(--gradient-dark);
    min-height: 60vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 20px;
    line-height: 1.2;
    color: var(--text-light);
}

.gradient-text {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 30px;
    line-height: 1.6;
}

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

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: var(--accent-gold);
}

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

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

.btn-primary, .btn-secondary {
    padding: 15px 30px;
    border: none;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--text-dark);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(212, 175, 55, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-gold);
    border: 2px solid var(--accent-gold);
}

.btn-secondary:hover {
    background: var(--accent-gold);
    color: var(--text-dark);
}

/* 英雄卡片样式 */
.hero-card {
    background: var(--secondary-black);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    max-width: 350px;
    margin: 0 auto;
    transition: transform 0.3s ease;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.hero-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(212, 175, 55, 0.2);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.user-avatar {
    width: 60px;
    height: 60px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    font-size: 1.5rem;
}

.user-info h3 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-light);
}

.user-info p {
    margin: 0;
    color: var(--text-gray);
    font-size: 0.9rem;
}

.verified-badge {
    color: var(--accent-gold);
    font-size: 1.2rem;
    margin-left: auto;
}

.card-content p {
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 20px;
}

.card-actions {
    display: flex;
    gap: 15px;
}

.btn-like, .btn-message {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.1rem;
}

.btn-like {
    background: rgba(212, 175, 55, 0.2);
    color: var(--accent-gold);
}

.btn-like:hover {
    background: var(--accent-gold);
    color: var(--text-dark);
}

.btn-message {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
}

.btn-message:hover {
    background: var(--text-light);
    color: var(--text-dark);
}

/* 通用区域样式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 15px;
    color: var(--text-light);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* 甜心包養網样式 */
.about {
    padding: 50px 0;
    background: var(--primary-black);
}

.sugar-section {
    margin: 40px 0;
}

.sugar-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 40px;
}

.sugar-content.reverse {
    grid-template-columns: 1fr 1fr;
}

.sugar-content.reverse .sugar-image {
    order: 2;
}

.sugar-content.reverse .sugar-text {
    order: 1;
}

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

.sugar-image svg {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.2);
}

.sugar-text h3 {
    font-size: 1.8rem;
    color: var(--accent-gold);
    margin-bottom: 20px;
    font-weight: bold;
}

.sugar-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 20px;
    color: var(--text-gray);
}

.sugar-features {
    list-style: none;
    padding: 0;
    margin: 25px 0;
}

.sugar-features li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-gray);
}

.sugar-features li i {
    color: var(--accent-gold);
    margin-right: 12px;
    margin-top: 2px;
    font-size: 1rem;
    flex-shrink: 0;
}

/* 平台特色样式 */
.features {
    padding: 50px 0;
    background: var(--secondary-black);
}

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

.feature-card {
    background: var(--primary-black);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(212, 175, 55, 0.2);
}

.feature-card .feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-gold);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    font-size: 2rem;
    margin: 0 auto 25px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-light);
}

.feature-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* 使用说明样式 */
.how-it-works {
    padding: 80px 0;
    background: var(--primary-black);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    font-size: 2rem;
    font-weight: bold;
    margin: 0 auto 25px;
}

.step h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-light);
}

.step p {
    color: var(--text-gray);
    line-height: 1.6;
    max-width: 250px;
    margin: 0 auto;
}

/* 认证系统样式 */
.certification {
    padding: 50px 0;
    background: var(--secondary-black);
}

/* 甜心认证部分使用不同的背景色 */
.baby-certification {
    background: var(--primary-black);
}

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

.cert-item {
    background: var(--primary-black);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.cert-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(212, 175, 55, 0.2);
}

.cert-item i {
    font-size: 3rem;
    color: var(--accent-gold);
    margin-bottom: 20px;
}

.cert-item h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-light);
}

.cert-item p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* 联系我们样式 */
.contact {
    padding: 50px 0;
    background: var(--primary-black);
}

.contact-content {
    margin-top: 30px;
}

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

.btn-contact-telegram {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    padding: 20px 40px;
    background: var(--gradient-gold);
    color: var(--text-dark);
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(212, 175, 55, 0.3);
}

.btn-contact-telegram:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
    background: var(--light-gold);
}

.btn-contact-telegram i {
    font-size: 1.5rem;
}



/* 页脚样式 */
.footer {
    background: var(--background-dark);
    color: var(--text-light);
    padding: 60px 0 20px;
    border-top: 1px solid var(--accent-gold);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: var(--accent-gold);
}

.footer-section p {
    line-height: 1.6;
    color: var(--text-gray);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--accent-gold);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--accent-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    text-decoration: none;
    transition: transform 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-3px);
    background: var(--light-gold);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(212, 175, 55, 0.3);
    color: var(--text-gray);
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--secondary-black);
    margin: 5% auto;
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
    border: 1px solid rgba(212, 175, 55, 0.3);
}

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

.modal-header {
    padding: 30px 30px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    color: var(--text-light);
}

.close {
    color: var(--text-gray);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: var(--accent-gold);
}

.modal-body {
    padding: 30px;
}

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

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    color: var(--text-light);
}

.checkbox input {
    width: auto;
}

.forgot-password {
    color: var(--accent-gold);
    text-decoration: none;
    font-size: 0.9rem;
}

.forgot-password:hover {
    text-decoration: underline;
}

.auth-divider {
    text-align: center;
    margin: 30px 0;
    position: relative;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(212, 175, 55, 0.3);
}

.auth-divider span {
    background: var(--secondary-black);
    padding: 0 20px;
    color: var(--text-gray);
}

.social-auth {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

.btn-social {
    padding: 15px;
    border: none;
    border-radius: 10px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

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

.btn-social.google {
    background: #db4437;
    color: white;
}

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

.auth-switch {
    text-align: center;
    color: var(--text-gray);
}

.auth-switch a {
    color: var(--accent-gold);
    text-decoration: none;
}

.auth-switch a:hover {
    text-decoration: underline;
}

/* 用户类型选择样式 */
.user-type-selection {
    text-align: center;
    margin-bottom: 30px;
}

.user-type-selection h3 {
    margin-bottom: 30px;
    color: var(--text-light);
}

.user-types {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.user-type-btn {
    padding: 30px 20px;
    border: 2px solid rgba(212, 175, 55, 0.3);
    border-radius: 15px;
    background: var(--primary-black);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.user-type-btn:hover,
.user-type-btn.active {
    border-color: var(--accent-gold);
    background: var(--secondary-black);
}

.user-type-btn i {
    font-size: 2rem;
    color: var(--accent-gold);
    margin-bottom: 15px;
}

.user-type-btn span {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 10px;
}

.user-type-btn p {
    margin: 0;
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-container {
        height: 60px;
        padding: 0 15px;
    }
    
    .nav-logo h1 {
        font-size: 1.5rem;
    }
    
    .logo-subtitle {
        font-size: 0.7rem;
    }
    
    .nav-buttons .btn-register {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .hero {
        padding: 70px 0 20px;
        min-height: 50vh;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 30px;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .about {
        padding: 30px 0;
    }
    
    .sugar-section {
        margin: 25px 0;
    }
    
    .sugar-content,
    .sugar-content.reverse {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .sugar-content.reverse .sugar-image,
    .sugar-content.reverse .sugar-text {
        order: unset;
    }
    
    .sugar-image svg {
        width: 250px;
        height: 300px;
    }
    
    .sugar-text h3 {
        font-size: 1.5rem;
    }
    
    .features {
        padding: 30px 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .certification {
        padding: 30px 0;
    }
    
    .cert-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact {
        padding: 30px 0;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-top: 20px;
    }
    
    .user-types {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 300px;
        justify-content: center;
        padding: 12px 24px;
    }
    
    .section-header h2 {
        font-size: 2.2rem;
    }
    
    .section-header p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .nav-container {
        height: 55px;
        padding: 0 10px;
    }
    
    .nav-logo h1 {
        font-size: 1.3rem;
    }
    
    .logo-subtitle {
        font-size: 0.6rem;
    }
    
    .nav-buttons .btn-register {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    
    .hero {
        padding: 60px 0 15px;
        min-height: 45vh;
    }
    
    .hero-content {
        padding: 0 10px;
    }
    
    .hero-title {
        font-size: 2rem;
        margin-bottom: 15px;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 25px;
    }
    
    .hero-stats {
        gap: 20px;
        margin-bottom: 30px;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .hero-buttons {
        gap: 12px;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 10px 20px;
        font-size: 1rem;
        max-width: 280px;
    }
    
    .about {
        padding: 25px 0;
    }
    
    .sugar-section {
        margin: 20px 0;
    }
    
    .features {
        padding: 25px 0;
    }
    
    .certification {
        padding: 25px 0;
    }
    
    .contact {
        padding: 25px 0;
    }
    
    .contact-content {
        margin-top: 15px;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
        margin-bottom: 10px;
    }
    
    .section-header p {
        font-size: 0.9rem;
    }
    
    .sugar-image svg {
        width: 200px;
        height: 250px;
    }
    
    .sugar-text h3 {
        font-size: 1.3rem;
    }
    
    .sugar-text p,
    .sugar-text li {
        font-size: 0.9rem;
    }
    
    .feature-card,
    .cert-item {
        padding: 20px 15px;
    }
    
    .feature-card h3,
    .cert-item h3 {
        font-size: 1.1rem;
    }
    
    .feature-card p,
    .cert-item p {
        font-size: 0.9rem;
    }
    
    .modal-content {
        margin: 5% auto;
        width: 95%;
        max-width: none;
    }
    
    .modal-body {
        padding: 15px;
    }
    
    .user-type-btn {
        padding: 20px 15px;
    }
    
    .user-type-btn i {
        font-size: 1.5rem;
    }
    
    .user-type-btn span {
        font-size: 1rem;
    }
    
    .user-type-btn p {
        font-size: 0.8rem;
    }
    
    .btn-contact-telegram {
        padding: 12px 24px;
        font-size: 1rem;
    }
}