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

:root {
    --primary-color: #8b5cf6;
    --primary-dark: #7c3aed;
    --secondary-color: #f59e0b;
    --bg-dark: #0f0f1a;
    --bg-card: #1a1a2e;
    --bg-card-hover: #252542;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --border-color: #2a2a4a;
    --alipay-color: #1677ff;
    --wechat-color: #07c160;
    --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
    --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

body {
    font-family: 'Noto Serif SC', serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
}

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

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.3);
}

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

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

.btn-lg {
    padding: 16px 40px;
    font-size: 18px;
}

.btn-alipay {
    background: linear-gradient(135deg, #1677ff 0%, #0958d9 100%);
    color: white;
}

.btn-alipay:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(22, 119, 255, 0.4);
}

.btn-wechat {
    background: linear-gradient(135deg, #07c160 0%, #06ad56 100%);
    color: white;
}

.btn-wechat:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(7, 193, 96, 0.4);
}

/* 头部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 26, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.logo-text {
    font-size: 22px;
    font-weight: 600;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.header-right {
    display: flex;
    gap: 15px;
}

/* 首页横幅 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 20px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, #1a1a3e 0%, #0f0f1a 70%);
}

.stars {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, white, transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.8), transparent),
        radial-gradient(1px 1px at 90px 40px, white, transparent),
        radial-gradient(2px 2px at 160px 120px, rgba(255,255,255,0.9), transparent),
        radial-gradient(1px 1px at 230px 80px, white, transparent),
        radial-gradient(2px 2px at 300px 150px, rgba(255,255,255,0.7), transparent);
    background-size: 350px 200px;
    animation: twinkle 5s infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.moon {
    position: absolute;
    top: 10%;
    right: 10%;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, #fff9c4 0%, #ffd54f 50%, transparent 70%);
    border-radius: 50%;
    box-shadow: 0 0 60px rgba(255, 213, 79, 0.5);
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff 0%, #c4b5fd 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
}

.feature-icon {
    font-size: 24px;
}

/* 服务区域 */
.services {
    padding: 100px 0;
    background: var(--bg-dark);
}

.section-title {
    font-size: 36px;
    text-align: center;
    margin-bottom: 50px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
}

.service-card:hover {
    transform: translateY(-10px);
    background: var(--bg-card-hover);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.2);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.service-name {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
}

.service-desc {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 20px;
    line-height: 1.8;
}

.service-price {
    font-size: 28px;
    font-weight: 700;
    color: var(--secondary-color);
}

.service-price::before {
    content: '¥';
    font-size: 16px;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border-radius: 20px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    border: 1px solid var(--border-color);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 22px;
    color: var(--primary-color);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 28px;
    cursor: pointer;
    line-height: 1;
}

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

.modal-body {
    padding: 25px;
}

.modal-footer {
    padding: 20px 25px;
    border-top: 1px solid var(--border-color);
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

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

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.radio-group {
    display: flex;
    gap: 20px;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.radio-group input[type="radio"] {
    width: auto;
    accent-color: var(--primary-color);
}

/* 价格信息 */
.price-info {
    text-align: center;
    margin-bottom: 20px;
}

.price-label {
    color: var(--text-secondary);
}

.price-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--secondary-color);
}

.pay-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.pay-icon {
    margin-right: 8px;
}

/* 支付页面 */
.modal-pay {
    text-align: center;
}

.pay-header {
    padding: 25px;
    border-bottom: 1px solid var(--border-color);
}

.pay-header h3 {
    color: var(--secondary-color);
}

.pay-body {
    padding: 30px;
}

.order-info {
    background: var(--bg-dark);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 25px;
}

.order-info p {
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.pay-amount {
    font-size: 20px;
    font-weight: 600;
    color: var(--secondary-color) !important;
}

.pay-qrcode {
    margin-bottom: 25px;
    color: var(--text-secondary);
}

.pay-qrcode p {
    margin-bottom: 10px;
}

.pay-actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* 结果页面 */
.modal-result {
    max-width: 700px;
}

.result-body {
    padding: 25px;
    max-height: 60vh;
    overflow-y: auto;
}

.result-content {
    line-height: 2;
    white-space: pre-wrap;
    color: var(--text-primary);
}

.result-content h1,
.result-content h2,
.result-content h3 {
    color: var(--primary-color);
    margin: 20px 0 10px;
}

/* 历史记录 */
.history-body {
    padding: 25px;
    max-height: 60vh;
    overflow-y: auto;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background: var(--bg-dark);
    border-radius: 8px;
    margin-bottom: 10px;
}

.history-info h4 {
    margin-bottom: 5px;
}

.history-info p {
    font-size: 14px;
    color: var(--text-secondary);
}

.history-status {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
}

.history-status.paid {
    background: rgba(139, 92, 246, 0.2);
    color: var(--primary-color);
}

.history-status.completed {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background: var(--bg-card);
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.about-item {
    text-align: center;
    padding: 30px;
}

.about-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.about-item h4 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.about-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 页脚 */
.footer {
    background: var(--bg-dark);
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 15px;
}

.footer-desc {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.footer-copyright {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 响应式 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-features {
        flex-direction: column;
        gap: 15px;
    }

    .nav {
        display: none;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .pay-buttons {
        grid-template-columns: 1fr;
    }

    .service-grid {
        grid-template-columns: 1fr;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* 订单查询框 */
.order-query-box {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.order-query-box input {
    flex: 1;
    padding: 12px 16px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
}

.order-query-box input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.order-query-box .btn {
    padding: 12px 20px;
    white-space: nowrap;
}

/* 隐私提示 */
.privacy-tip {
    text-align: center;
    color: var(--text-secondary);
    font-size: 12px;
    margin-bottom: 15px;
    padding: 8px;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 6px;
}

/* 历史记录项 */
.history-items {
    max-height: 400px;
    overflow-y: auto;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background: var(--bg-dark);
    border-radius: 10px;
    margin-bottom: 10px;
    border: 1px solid var(--border-color);
}

.history-info h4 {
    margin-bottom: 5px;
    color: var(--text-primary);
}

.history-info p {
    font-size: 12px;
    color: var(--text-secondary);
    margin: 2px 0;
}

.history-time {
    font-size: 11px !important;
    opacity: 0.7;
}

.btn-sm {
    padding: 6px 12px !important;
    font-size: 12px !important;
}