/* PostBot 首页样式 - 现代化 VIP 页面风格 */

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --secondary: #764ba2;
    --accent: #f093fb;
    --text: #1a202c;
    --text-light: #4a5568;
    --text-lighter: #718096;
    --bg: #ffffff;
    --bg-light: #f7fafc;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --radius-lg: 16px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    background: var(--bg-light);
    border-color: var(--primary);
    color: var(--primary);
}

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

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-large {
    padding: 14px 32px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-actions {
    display: flex;
    gap: 12px;
}

/* 主视觉区域 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    z-index: 1;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 20px;
    font-size: 14px;
    color: var(--primary);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.arrow {
    transition: transform 0.2s;
}

.btn:hover .arrow {
    transform: translateX(4px);
}

.hero-stats {
    display: flex;
    gap: 48px;
}

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

.stat-number {
    font-size: 32px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 14px;
    color: var(--text-lighter);
    margin-top: 4px;
}

/* 主视觉装饰 */
.hero-visual {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 400px;
}

.platform-icons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.platform-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    animation: float 3s ease-in-out infinite;
}

.platform-icon:nth-child(2) { animation-delay: 0.2s; }
.platform-icon:nth-child(3) { animation-delay: 0.4s; }
.platform-icon:nth-child(4) { animation-delay: 0.6s; }
.platform-icon:nth-child(5) { animation-delay: 0.8s; }
.platform-icon:nth-child(6) { animation-delay: 1s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 0;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    top: -200px;
    right: -200px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
    bottom: -100px;
    left: -100px;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
    top: 50%;
    left: 30%;
    opacity: 0.3;
}

/* 功能特性 */
.features {
    padding: 100px 0;
    background: var(--bg-light);
}

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

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: var(--radius);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.6;
}

/* 会员价格 */
.pricing {
    padding: 100px 0;
}

.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.toggle-label {
    font-size: 16px;
    color: var(--text-light);
    cursor: pointer;
}

.toggle-label.active {
    color: var(--text);
    font-weight: 600;
}

.save-badge {
    display: inline-block;
    padding: 2px 8px;
    background: #10b981;
    color: white;
    font-size: 12px;
    border-radius: 10px;
    margin-left: 4px;
}

.toggle-switch {
    position: relative;
    width: 52px;
    height: 28px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--border);
    border-radius: 28px;
    transition: 0.3s;
}

.toggle-slider:before {
    content: "";
    position: absolute;
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: 0.3s;
}

.toggle-switch input:checked + .toggle-slider {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(24px);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.pricing-card {
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.popular {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
}

.pricing-header {
    text-align: center;
    margin-bottom: 24px;
}

.pricing-header h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.pricing-header p {
    font-size: 14px;
    color: var(--text-light);
}

.pricing-price {
    text-align: center;
    margin-bottom: 24px;
}

.currency {
    font-size: 24px;
    font-weight: 600;
    color: var(--text);
}

.amount {
    font-size: 48px;
    font-weight: 800;
    color: var(--text);
}

.period {
    font-size: 16px;
    color: var(--text-lighter);
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 15px;
    border-bottom: 1px solid var(--border);
}

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

.pricing-features li.disabled {
    color: var(--text-lighter);
}

.check {
    color: #10b981;
    font-weight: 700;
}

.cross {
    color: #ef4444;
    font-weight: 700;
}

/* 会员权益对比 */
.pricing-benefits {
    margin-top: 60px;
    padding: 40px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
}

.benefits-title {
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--text);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.benefits-column h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text);
}

.benefits-column ul {
    list-style: none;
}

.benefits-column li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    font-size: 15px;
    color: var(--text-light);
}

.benefits-column .check {
    color: #10b981;
    font-weight: 700;
}

/* 支持平台 */
.platforms {
    padding: 100px 0;
    background: var(--bg-light);
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
}

.platform-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.platform-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.platform-logo {
    font-size: 40px;
}

.platform-item span {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-light);
}

/* CTA */
.cta {
    position: relative;
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    overflow: hidden;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
}

.cta-content h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
}

.cta-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.cta-bg .gradient-orb {
    opacity: 0.3;
}

.cta-bg .orb-1 {
    background: white;
    top: -100px;
    right: -100px;
}

.cta-bg .orb-2 {
    background: var(--accent);
    bottom: -100px;
    left: -100px;
}

/* 页脚 */
.footer {
    padding: 60px 0 24px;
    background: var(--text);
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 16px;
}

.footer-brand .logo-text {
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 12px;
    transition: color 0.2s;
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
        height: 300px;
    }
    
    .hero h1 {
        font-size: 40px;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .platforms-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .nav-links {
        display: none;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .platforms-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .cta-content h2 {
        font-size: 28px;
    }
}

/* 购买弹窗 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 16px;
    max-width: 480px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-light);
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--text);
}

.modal-body {
    padding: 24px;
}

.purchase-info {
    background: var(--bg);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 24px;
}

.purchase-info p {
    margin: 8px 0;
    font-size: 16px;
}

.purchase-info strong {
    color: var(--text);
}

.payment-methods h4 {
    margin-bottom: 16px;
    font-size: 16px;
    font-weight: 600;
}

.payment-method-options {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.payment-option {
    flex: 1;
    cursor: pointer;
}

.payment-option input {
    display: none;
}

.payment-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    border: 2px solid var(--border);
    border-radius: 8px;
    transition: all 0.2s;
}

.payment-option input:checked + .payment-label {
    border-color: var(--primary);
    background: var(--bg);
}

.payment-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.qrcode-container {
    text-align: center;
}

.qrcode-tip {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
}

.qrcode-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

.qrcode-placeholder {
    width: 200px;
    height: 200px;
    background: var(--bg);
    border: 2px dashed var(--border);
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-light);
}

.qrcode-placeholder img {
    width: 100%;
    height: 100%;
    border-radius: 8px;
}

.qrcode-info {
    margin-bottom: 24px;
}

.qrcode-info p {
    margin: 8px 0;
    font-size: 14px;
    color: var(--text-light);
}

.qrcode-info span {
    color: var(--text);
    font-weight: 600;
}

.qrcode-status .waiting {
    color: var(--primary);
    font-weight: 600;
}

.qrcode-status .success {
    color: var(--success);
    font-weight: 600;
}

/* 用户状态样式 */
.user-status {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 14px;
}

.user-status.free {
    background: #f3f4f6;
    color: #4b5563;
}

.user-status.vip {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.user-status.svip {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}